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Finding the Fourth Proportional to 1,154.20, 1,592.22 and 760.72

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Solution

The fourth proportional to 1,154.20, 1,592.22 and 760.72 is: 1,049.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,154.20 : 1,592.22 = 760.72 : x
  2. Step 2: Convert to fraction form
    1,154.20/1,592.22 = 760.72/x
  3. Step 3: Cross multiply
    1,154.20x = 1,592.22 × 760.72
  4. Step 4: Simplify right side
    1,154.20x = 1,211,233.60
  5. Step 5: Solve for x
    x = 1,211,233.60/1,154.20
  6. Step 6: Final answer
    x = 1,049.41

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1.5x scale

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.