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Finding the Fourth Proportional to 6,642.48, 9,957.78 and 2,744.40

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Solution

The fourth proportional to 6,642.48, 9,957.78 and 2,744.40 is: 4,114.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,642.48 : 9,957.78 = 2,744.40 : x
  2. Step 2: Convert to fraction form
    6,642.48/9,957.78 = 2,744.40/x
  3. Step 3: Cross multiply
    6,642.48x = 9,957.78 × 2,744.40
  4. Step 4: Simplify right side
    6,642.48x = 27,328,131.43
  5. Step 5: Solve for x
    x = 27,328,131.43/6,642.48
  6. Step 6: Final answer
    x = 4,114.15

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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.