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Finding the Fourth Proportional to 883.14, 1,218.07 and 751.58

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Solution

The fourth proportional to 883.14, 1,218.07 and 751.58 is: 1,036.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    883.14 : 1,218.07 = 751.58 : x
  2. Step 2: Convert to fraction form
    883.14/1,218.07 = 751.58/x
  3. Step 3: Cross multiply
    883.14x = 1,218.07 × 751.58
  4. Step 4: Simplify right side
    883.14x = 915,476.47
  5. Step 5: Solve for x
    x = 915,476.47/883.14
  6. Step 6: Final answer
    x = 1,036.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.