Home / 6,128.50-9,191.63-1,625.58

Finding the Fourth Proportional to 6,128.50, 9,191.63 and 1,625.58

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Solution

The fourth proportional to 6,128.50, 9,191.63 and 1,625.58 is: 2,438.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,128.50 : 9,191.63 = 1,625.58 : x
  2. Step 2: Convert to fraction form
    6,128.50/9,191.63 = 1,625.58/x
  3. Step 3: Cross multiply
    6,128.50x = 9,191.63 × 1,625.58
  4. Step 4: Simplify right side
    6,128.50x = 14,941,748.03
  5. Step 5: Solve for x
    x = 14,941,748.03/6,128.50
  6. Step 6: Final answer
    x = 2,438.08

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.