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Finding the Fourth Proportional to 887.96, 1,333.45 and 841.79

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Solution

The fourth proportional to 887.96, 1,333.45 and 841.79 is: 1,264.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    887.96 : 1,333.45 = 841.79 : x
  2. Step 2: Convert to fraction form
    887.96/1,333.45 = 841.79/x
  3. Step 3: Cross multiply
    887.96x = 1,333.45 × 841.79
  4. Step 4: Simplify right side
    887.96x = 1,122,476.10
  5. Step 5: Solve for x
    x = 1,122,476.10/887.96
  6. Step 6: Final answer
    x = 1,264.11

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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.