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Finding the Fourth Proportional to 882.03, 1,329.75 and 871.08

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Solution

The fourth proportional to 882.03, 1,329.75 and 871.08 is: 1,313.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    882.03 : 1,329.75 = 871.08 : x
  2. Step 2: Convert to fraction form
    882.03/1,329.75 = 871.08/x
  3. Step 3: Cross multiply
    882.03x = 1,329.75 × 871.08
  4. Step 4: Simplify right side
    882.03x = 1,158,318.63
  5. Step 5: Solve for x
    x = 1,158,318.63/882.03
  6. Step 6: Final answer
    x = 1,313.24

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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.