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Finding the Fourth Proportional to 6,402.53, 8,836.94 and 4,160.49

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Solution

The fourth proportional to 6,402.53, 8,836.94 and 4,160.49 is: 5,742.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,402.53 : 8,836.94 = 4,160.49 : x
  2. Step 2: Convert to fraction form
    6,402.53/8,836.94 = 4,160.49/x
  3. Step 3: Cross multiply
    6,402.53x = 8,836.94 × 4,160.49
  4. Step 4: Simplify right side
    6,402.53x = 36,765,979.70
  5. Step 5: Solve for x
    x = 36,765,979.70/6,402.53
  6. Step 6: Final answer
    x = 5,742.42

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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.