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Finding the Fourth Proportional to 3,073.12, 4,610.38 and 881.76

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Solution

The fourth proportional to 3,073.12, 4,610.38 and 881.76 is: 1,322.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,073.12 : 4,610.38 = 881.76 : x
  2. Step 2: Convert to fraction form
    3,073.12/4,610.38 = 881.76/x
  3. Step 3: Cross multiply
    3,073.12x = 4,610.38 × 881.76
  4. Step 4: Simplify right side
    3,073.12x = 4,065,248.67
  5. Step 5: Solve for x
    x = 4,065,248.67/3,073.12
  6. Step 6: Final answer
    x = 1,322.84

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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.