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Finding the Fourth Proportional to 884.93, 1,326.82 and 291.70

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Solution

The fourth proportional to 884.93, 1,326.82 and 291.70 is: 437.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    884.93 : 1,326.82 = 291.70 : x
  2. Step 2: Convert to fraction form
    884.93/1,326.82 = 291.70/x
  3. Step 3: Cross multiply
    884.93x = 1,326.82 × 291.70
  4. Step 4: Simplify right side
    884.93x = 387,033.39
  5. Step 5: Solve for x
    x = 387,033.39/884.93
  6. Step 6: Final answer
    x = 437.36

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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.