Home / 7,572.28-11,359.94-2,640.59

Finding the Fourth Proportional to 7,572.28, 11,359.94 and 2,640.59

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Solution

The fourth proportional to 7,572.28, 11,359.94 and 2,640.59 is: 3,961.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,572.28 : 11,359.94 = 2,640.59 : x
  2. Step 2: Convert to fraction form
    7,572.28/11,359.94 = 2,640.59/x
  3. Step 3: Cross multiply
    7,572.28x = 11,359.94 × 2,640.59
  4. Step 4: Simplify right side
    7,572.28x = 29,996,943.96
  5. Step 5: Solve for x
    x = 29,996,943.96/7,572.28
  6. Step 6: Final answer
    x = 3,961.42

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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.