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Finding the Fourth Proportional to 2,325, 3,207.36 and 1,539.69

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Solution

The fourth proportional to 2,325, 3,207.36 and 1,539.69 is: 2,124.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,325 : 3,207.36 = 1,539.69 : x
  2. Step 2: Convert to fraction form
    2,325/3,207.36 = 1,539.69/x
  3. Step 3: Cross multiply
    2,325x = 3,207.36 × 1,539.69
  4. Step 4: Simplify right side
    2,325x = 4,938,340.12
  5. Step 5: Solve for x
    x = 4,938,340.12/2,325
  6. Step 6: Final answer
    x = 2,124.02

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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.