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Finding the Fourth Proportional to 2,587.17, 3,881.39 and 832.33

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Solution

The fourth proportional to 2,587.17, 3,881.39 and 832.33 is: 1,248.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,587.17 : 3,881.39 = 832.33 : x
  2. Step 2: Convert to fraction form
    2,587.17/3,881.39 = 832.33/x
  3. Step 3: Cross multiply
    2,587.17x = 3,881.39 × 832.33
  4. Step 4: Simplify right side
    2,587.17x = 3,230,597.34
  5. Step 5: Solve for x
    x = 3,230,597.34/2,587.17
  6. Step 6: Final answer
    x = 1,248.70

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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.