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Finding the Fourth Proportional to 3,429.29, 5,143.92 and 832.25

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Solution

The fourth proportional to 3,429.29, 5,143.92 and 832.25 is: 1,248.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,429.29 : 5,143.92 = 832.25 : x
  2. Step 2: Convert to fraction form
    3,429.29/5,143.92 = 832.25/x
  3. Step 3: Cross multiply
    3,429.29x = 5,143.92 × 832.25
  4. Step 4: Simplify right side
    3,429.29x = 4,281,027.42
  5. Step 5: Solve for x
    x = 4,281,027.42/3,429.29
  6. Step 6: Final answer
    x = 1,248.37

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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.