Home / 7,572.24-11,355.11-2,640.42

Finding the Fourth Proportional to 7,572.24, 11,355.11 and 2,640.42

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Solution

The fourth proportional to 7,572.24, 11,355.11 and 2,640.42 is: 3,959.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,572.24 : 11,355.11 = 2,640.42 : x
  2. Step 2: Convert to fraction form
    7,572.24/11,355.11 = 2,640.42/x
  3. Step 3: Cross multiply
    7,572.24x = 11,355.11 × 2,640.42
  4. Step 4: Simplify right side
    7,572.24x = 29,982,202.77
  5. Step 5: Solve for x
    x = 29,982,202.77/7,572.24
  6. Step 6: Final answer
    x = 3,959.49

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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.