Home / 7,489.28-11,226.12-2,557.28

Finding the Fourth Proportional to 7,489.28, 11,226.12 and 2,557.28

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Solution

The fourth proportional to 7,489.28, 11,226.12 and 2,557.28 is: 3,833.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,489.28 : 11,226.12 = 2,557.28 : x
  2. Step 2: Convert to fraction form
    7,489.28/11,226.12 = 2,557.28/x
  3. Step 3: Cross multiply
    7,489.28x = 11,226.12 × 2,557.28
  4. Step 4: Simplify right side
    7,489.28x = 28,708,332.15
  5. Step 5: Solve for x
    x = 28,708,332.15/7,489.28
  6. Step 6: Final answer
    x = 3,833.26

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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.