Home / 772.27-1,158.11-252.13

Finding the Fourth Proportional to 772.27, 1,158.11 and 252.13

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Solution

The fourth proportional to 772.27, 1,158.11 and 252.13 is: 378.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    772.27 : 1,158.11 = 252.13 : x
  2. Step 2: Convert to fraction form
    772.27/1,158.11 = 252.13/x
  3. Step 3: Cross multiply
    772.27x = 1,158.11 × 252.13
  4. Step 4: Simplify right side
    772.27x = 291,994.27
  5. Step 5: Solve for x
    x = 291,994.27/772.27
  6. Step 6: Final answer
    x = 378.10

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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.