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Finding the Fourth Proportional to 1,147.04, 1,582.96 and 753.76

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Solution

The fourth proportional to 1,147.04, 1,582.96 and 753.76 is: 1,040.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147.04 : 1,582.96 = 753.76 : x
  2. Step 2: Convert to fraction form
    1,147.04/1,582.96 = 753.76/x
  3. Step 3: Cross multiply
    1,147.04x = 1,582.96 × 753.76
  4. Step 4: Simplify right side
    1,147.04x = 1,193,171.93
  5. Step 5: Solve for x
    x = 1,193,171.93/1,147.04
  6. Step 6: Final answer
    x = 1,040.22

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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.