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Finding the Fourth Proportional to 6,642.84, 9,957.24 and 2,485.92

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Solution

The fourth proportional to 6,642.84, 9,957.24 and 2,485.92 is: 3,726.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,642.84 : 9,957.24 = 2,485.92 : x
  2. Step 2: Convert to fraction form
    6,642.84/9,957.24 = 2,485.92/x
  3. Step 3: Cross multiply
    6,642.84x = 9,957.24 × 2,485.92
  4. Step 4: Simplify right side
    6,642.84x = 24,752,902.06
  5. Step 5: Solve for x
    x = 24,752,902.06/6,642.84
  6. Step 6: Final answer
    x = 3,726.25

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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.