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Finding the Fourth Proportional to 5,691.91, 8,535.31 and 2,179.46

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Solution

The fourth proportional to 5,691.91, 8,535.31 and 2,179.46 is: 3,268.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,691.91 : 8,535.31 = 2,179.46 : x
  2. Step 2: Convert to fraction form
    5,691.91/8,535.31 = 2,179.46/x
  3. Step 3: Cross multiply
    5,691.91x = 8,535.31 × 2,179.46
  4. Step 4: Simplify right side
    5,691.91x = 18,602,366.73
  5. Step 5: Solve for x
    x = 18,602,366.73/5,691.91
  6. Step 6: Final answer
    x = 3,268.21

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1.5x scale

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.