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Finding the Fourth Proportional to 3,508.59, 5,265.95 and 1,429.73

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Solution

The fourth proportional to 3,508.59, 5,265.95 and 1,429.73 is: 2,145.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,508.59 : 5,265.95 = 1,429.73 : x
  2. Step 2: Convert to fraction form
    3,508.59/5,265.95 = 1,429.73/x
  3. Step 3: Cross multiply
    3,508.59x = 5,265.95 × 1,429.73
  4. Step 4: Simplify right side
    3,508.59x = 7,528,853.22
  5. Step 5: Solve for x
    x = 7,528,853.22/3,508.59
  6. Step 6: Final answer
    x = 2,145.83

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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.