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Finding the Fourth Proportional to 5,641.54, 7,784.55 and 3,372.87

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Solution

The fourth proportional to 5,641.54, 7,784.55 and 3,372.87 is: 4,654.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,641.54 : 7,784.55 = 3,372.87 : x
  2. Step 2: Convert to fraction form
    5,641.54/7,784.55 = 3,372.87/x
  3. Step 3: Cross multiply
    5,641.54x = 7,784.55 × 3,372.87
  4. Step 4: Simplify right side
    5,641.54x = 26,256,275.16
  5. Step 5: Solve for x
    x = 26,256,275.16/5,641.54
  6. Step 6: Final answer
    x = 4,654.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.