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Finding the Fourth Proportional to 882.74, 1,324.13 and 753.63

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Solution

The fourth proportional to 882.74, 1,324.13 and 753.63 is: 1,130.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    882.74 : 1,324.13 = 753.63 : x
  2. Step 2: Convert to fraction form
    882.74/1,324.13 = 753.63/x
  3. Step 3: Cross multiply
    882.74x = 1,324.13 × 753.63
  4. Step 4: Simplify right side
    882.74x = 997,900.32
  5. Step 5: Solve for x
    x = 997,900.32/882.74
  6. Step 6: Final answer
    x = 1,130.46

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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.