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Finding the Fourth Proportional to 3,881.52, 5,354.40 and 2,462.64

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Solution

The fourth proportional to 3,881.52, 5,354.40 and 2,462.64 is: 3,397.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,881.52 : 5,354.40 = 2,462.64 : x
  2. Step 2: Convert to fraction form
    3,881.52/5,354.40 = 2,462.64/x
  3. Step 3: Cross multiply
    3,881.52x = 5,354.40 × 2,462.64
  4. Step 4: Simplify right side
    3,881.52x = 13,185,959.62
  5. Step 5: Solve for x
    x = 13,185,959.62/3,881.52
  6. Step 6: Final answer
    x = 3,397.11

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1.5x scale

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.