Home / 7,287.26-10,929.18-3,125.30

Finding the Fourth Proportional to 7,287.26, 10,929.18 and 3,125.30

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Solution

The fourth proportional to 7,287.26, 10,929.18 and 3,125.30 is: 4,687.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,287.26 : 10,929.18 = 3,125.30 : x
  2. Step 2: Convert to fraction form
    7,287.26/10,929.18 = 3,125.30/x
  3. Step 3: Cross multiply
    7,287.26x = 10,929.18 × 3,125.30
  4. Step 4: Simplify right side
    7,287.26x = 34,156,966.25
  5. Step 5: Solve for x
    x = 34,156,966.25/7,287.26
  6. Step 6: Final answer
    x = 4,687.22

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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.