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Finding the Fourth Proportional to 887.31, 1,322.04 and 837.63

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Solution

The fourth proportional to 887.31, 1,322.04 and 837.63 is: 1,248.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    887.31 : 1,322.04 = 837.63 : x
  2. Step 2: Convert to fraction form
    887.31/1,322.04 = 837.63/x
  3. Step 3: Cross multiply
    887.31x = 1,322.04 × 837.63
  4. Step 4: Simplify right side
    887.31x = 1,107,374.80
  5. Step 5: Solve for x
    x = 1,107,374.80/887.31
  6. Step 6: Final answer
    x = 1,248.02

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.