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Finding the Fourth Proportional to 2,308.80, 3,459.11 and 1,759.32

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Solution

The fourth proportional to 2,308.80, 3,459.11 and 1,759.32 is: 2,635.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,308.80 : 3,459.11 = 1,759.32 : x
  2. Step 2: Convert to fraction form
    2,308.80/3,459.11 = 1,759.32/x
  3. Step 3: Cross multiply
    2,308.80x = 3,459.11 × 1,759.32
  4. Step 4: Simplify right side
    2,308.80x = 6,085,672.61
  5. Step 5: Solve for x
    x = 6,085,672.61/2,308.80
  6. Step 6: Final answer
    x = 2,635.86

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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.