Home / 6,514.70-8,987.34-3,995.79

Finding the Fourth Proportional to 6,514.70, 8,987.34 and 3,995.79

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Solution

The fourth proportional to 6,514.70, 8,987.34 and 3,995.79 is: 5,512.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,514.70 : 8,987.34 = 3,995.79 : x
  2. Step 2: Convert to fraction form
    6,514.70/8,987.34 = 3,995.79/x
  3. Step 3: Cross multiply
    6,514.70x = 8,987.34 × 3,995.79
  4. Step 4: Simplify right side
    6,514.70x = 35,911,523.30
  5. Step 5: Solve for x
    x = 35,911,523.30/6,514.70
  6. Step 6: Final answer
    x = 5,512.39

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Half scale
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Double scale
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Similar ratio
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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.