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Finding the Fourth Proportional to 5,909.48, 8,865.56 and 1,962

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Solution

The fourth proportional to 5,909.48, 8,865.56 and 1,962 is: 2,943.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,909.48 : 8,865.56 = 1,962 : x
  2. Step 2: Convert to fraction form
    5,909.48/8,865.56 = 1,962/x
  3. Step 3: Cross multiply
    5,909.48x = 8,865.56 × 1,962
  4. Step 4: Simplify right side
    5,909.48x = 17,394,228.72
  5. Step 5: Solve for x
    x = 17,394,228.72/5,909.48
  6. Step 6: Final answer
    x = 2,943.44

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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.