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Finding the Fourth Proportional to 3,473.52, 5,207.15 and 1,281.70

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Solution

The fourth proportional to 3,473.52, 5,207.15 and 1,281.70 is: 1,921.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,473.52 : 5,207.15 = 1,281.70 : x
  2. Step 2: Convert to fraction form
    3,473.52/5,207.15 = 1,281.70/x
  3. Step 3: Cross multiply
    3,473.52x = 5,207.15 × 1,281.70
  4. Step 4: Simplify right side
    3,473.52x = 6,673,997.75
  5. Step 5: Solve for x
    x = 6,673,997.75/3,473.52
  6. Step 6: Final answer
    x = 1,921.40

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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.