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Finding the Fourth Proportional to 3,251.79, 4,487.46 and 1,759.71

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Solution

The fourth proportional to 3,251.79, 4,487.46 and 1,759.71 is: 2,428.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,251.79 : 4,487.46 = 1,759.71 : x
  2. Step 2: Convert to fraction form
    3,251.79/4,487.46 = 1,759.71/x
  3. Step 3: Cross multiply
    3,251.79x = 4,487.46 × 1,759.71
  4. Step 4: Simplify right side
    3,251.79x = 7,896,605.80
  5. Step 5: Solve for x
    x = 7,896,605.80/3,251.79
  6. Step 6: Final answer
    x = 2,428.39

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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.