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Finding the Fourth Proportional to 2,308.55, 3,462.85 and 577.18

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Solution

The fourth proportional to 2,308.55, 3,462.85 and 577.18 is: 865.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,308.55 : 3,462.85 = 577.18 : x
  2. Step 2: Convert to fraction form
    2,308.55/3,462.85 = 577.18/x
  3. Step 3: Cross multiply
    2,308.55x = 3,462.85 × 577.18
  4. Step 4: Simplify right side
    2,308.55x = 1,998,687.76
  5. Step 5: Solve for x
    x = 1,998,687.76/2,308.55
  6. Step 6: Final answer
    x = 865.78

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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.