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Finding the Fourth Proportional to 2,655.13, 3,979.80 and 2,532.47

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Solution

The fourth proportional to 2,655.13, 3,979.80 and 2,532.47 is: 3,795.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,655.13 : 3,979.80 = 2,532.47 : x
  2. Step 2: Convert to fraction form
    2,655.13/3,979.80 = 2,532.47/x
  3. Step 3: Cross multiply
    2,655.13x = 3,979.80 × 2,532.47
  4. Step 4: Simplify right side
    2,655.13x = 10,078,704.21
  5. Step 5: Solve for x
    x = 10,078,704.21/2,655.13
  6. Step 6: Final answer
    x = 3,795.94

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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.