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Finding the Fourth Proportional to 4,398.82, 6,631.51 and 4,160.68

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Solution

The fourth proportional to 4,398.82, 6,631.51 and 4,160.68 is: 6,272.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,398.82 : 6,631.51 = 4,160.68 : x
  2. Step 2: Convert to fraction form
    4,398.82/6,631.51 = 4,160.68/x
  3. Step 3: Cross multiply
    4,398.82x = 6,631.51 × 4,160.68
  4. Step 4: Simplify right side
    4,398.82x = 27,591,591.03
  5. Step 5: Solve for x
    x = 27,591,591.03/4,398.82
  6. Step 6: Final answer
    x = 6,272.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.