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Finding the Fourth Proportional to 2,269.66, 3,402.88 and 881.82

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Solution

The fourth proportional to 2,269.66, 3,402.88 and 881.82 is: 1,322.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,269.66 : 3,402.88 = 881.82 : x
  2. Step 2: Convert to fraction form
    2,269.66/3,402.88 = 881.82/x
  3. Step 3: Cross multiply
    2,269.66x = 3,402.88 × 881.82
  4. Step 4: Simplify right side
    2,269.66x = 3,000,727.64
  5. Step 5: Solve for x
    x = 3,000,727.64/2,269.66
  6. Step 6: Final answer
    x = 1,322.10

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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.