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Finding the Fourth Proportional to 2,402.64, 3,318.01 and 1,658.52

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Solution

The fourth proportional to 2,402.64, 3,318.01 and 1,658.52 is: 2,290.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,402.64 : 3,318.01 = 1,658.52 : x
  2. Step 2: Convert to fraction form
    2,402.64/3,318.01 = 1,658.52/x
  3. Step 3: Cross multiply
    2,402.64x = 3,318.01 × 1,658.52
  4. Step 4: Simplify right side
    2,402.64x = 5,502,985.95
  5. Step 5: Solve for x
    x = 5,502,985.95/2,402.64
  6. Step 6: Final answer
    x = 2,290.39

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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.