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Finding the Fourth Proportional to 4,325, 6,493.96 and 2,478.20

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Solution

The fourth proportional to 4,325, 6,493.96 and 2,478.20 is: 3,721.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,325 : 6,493.96 = 2,478.20 : x
  2. Step 2: Convert to fraction form
    4,325/6,493.96 = 2,478.20/x
  3. Step 3: Cross multiply
    4,325x = 6,493.96 × 2,478.20
  4. Step 4: Simplify right side
    4,325x = 16,093,331.67
  5. Step 5: Solve for x
    x = 16,093,331.67/4,325
  6. Step 6: Final answer
    x = 3,721.00

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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.