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Finding the Fourth Proportional to 887.27, 1,335.84 and 693.32

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Solution

The fourth proportional to 887.27, 1,335.84 and 693.32 is: 1,043.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    887.27 : 1,335.84 = 693.32 : x
  2. Step 2: Convert to fraction form
    887.27/1,335.84 = 693.32/x
  3. Step 3: Cross multiply
    887.27x = 1,335.84 × 693.32
  4. Step 4: Simplify right side
    887.27x = 926,161.12
  5. Step 5: Solve for x
    x = 926,161.12/887.27
  6. Step 6: Final answer
    x = 1,043.83

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.