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Finding the Fourth Proportional to 2,881.33, 4,322.39 and 932.88

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Solution

The fourth proportional to 2,881.33, 4,322.39 and 932.88 is: 1,399.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,881.33 : 4,322.39 = 932.88 : x
  2. Step 2: Convert to fraction form
    2,881.33/4,322.39 = 932.88/x
  3. Step 3: Cross multiply
    2,881.33x = 4,322.39 × 932.88
  4. Step 4: Simplify right side
    2,881.33x = 4,032,271.18
  5. Step 5: Solve for x
    x = 4,032,271.18/2,881.33
  6. Step 6: Final answer
    x = 1,399.45

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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.