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Finding the Fourth Proportional to 5,881.20, 8,821.80 and 1,932.45

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Solution

The fourth proportional to 5,881.20, 8,821.80 and 1,932.45 is: 2,898.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,881.20 : 8,821.80 = 1,932.45 : x
  2. Step 2: Convert to fraction form
    5,881.20/8,821.80 = 1,932.45/x
  3. Step 3: Cross multiply
    5,881.20x = 8,821.80 × 1,932.45
  4. Step 4: Simplify right side
    5,881.20x = 17,047,687.41
  5. Step 5: Solve for x
    x = 17,047,687.41/5,881.20
  6. Step 6: Final answer
    x = 2,898.68

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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.