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Finding the Fourth Proportional to 2,488.68, 3,734.64 and 1,102.92

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Solution

The fourth proportional to 2,488.68, 3,734.64 and 1,102.92 is: 1,655.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,488.68 : 3,734.64 = 1,102.92 : x
  2. Step 2: Convert to fraction form
    2,488.68/3,734.64 = 1,102.92/x
  3. Step 3: Cross multiply
    2,488.68x = 3,734.64 × 1,102.92
  4. Step 4: Simplify right side
    2,488.68x = 4,119,009.15
  5. Step 5: Solve for x
    x = 4,119,009.15/2,488.68
  6. Step 6: Final answer
    x = 1,655.10

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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.