Home / 6,514.83-8,990.91-3,681.23

Finding the Fourth Proportional to 6,514.83, 8,990.91 and 3,681.23

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Solution

The fourth proportional to 6,514.83, 8,990.91 and 3,681.23 is: 5,080.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,514.83 : 8,990.91 = 3,681.23 : x
  2. Step 2: Convert to fraction form
    6,514.83/8,990.91 = 3,681.23/x
  3. Step 3: Cross multiply
    6,514.83x = 8,990.91 × 3,681.23
  4. Step 4: Simplify right side
    6,514.83x = 33,097,562.66
  5. Step 5: Solve for x
    x = 33,097,562.66/6,514.83
  6. Step 6: Final answer
    x = 5,080.34

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Find fourth proportional to 3,257.42, 4,495.46 and 1,840.61
Half scale
Find fourth proportional to 13,029.66, 17,981.82 and 7,362.45
Double scale
Find fourth proportional to 6,515.83, 8,992.29 and 3,682.23
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.