Home / 2,247.12-3,371.10-766.20

Finding the Fourth Proportional to 2,247.12, 3,371.10 and 766.20

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Solution

The fourth proportional to 2,247.12, 3,371.10 and 766.20 is: 1,149.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,247.12 : 3,371.10 = 766.20 : x
  2. Step 2: Convert to fraction form
    2,247.12/3,371.10 = 766.20/x
  3. Step 3: Cross multiply
    2,247.12x = 3,371.10 × 766.20
  4. Step 4: Simplify right side
    2,247.12x = 2,582,936.82
  5. Step 5: Solve for x
    x = 2,582,936.82/2,247.12
  6. Step 6: Final answer
    x = 1,149.44

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1.5x scale

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.