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Finding the Fourth Proportional to 3,429.35, 5,143.98 and 832.28

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Solution

The fourth proportional to 3,429.35, 5,143.98 and 832.28 is: 1,248.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,429.35 : 5,143.98 = 832.28 : x
  2. Step 2: Convert to fraction form
    3,429.35/5,143.98 = 832.28/x
  3. Step 3: Cross multiply
    3,429.35x = 5,143.98 × 832.28
  4. Step 4: Simplify right side
    3,429.35x = 4,281,244.53
  5. Step 5: Solve for x
    x = 4,281,244.53/3,429.35
  6. Step 6: Final answer
    x = 1,248.41

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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.