Home / 1,234.20-1,851.24-746.76

Finding the Fourth Proportional to 1,234.20, 1,851.24 and 746.76

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Solution

The fourth proportional to 1,234.20, 1,851.24 and 746.76 is: 1,120.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,234.20 : 1,851.24 = 746.76 : x
  2. Step 2: Convert to fraction form
    1,234.20/1,851.24 = 746.76/x
  3. Step 3: Cross multiply
    1,234.20x = 1,851.24 × 746.76
  4. Step 4: Simplify right side
    1,234.20x = 1,382,431.98
  5. Step 5: Solve for x
    x = 1,382,431.98/1,234.20
  6. Step 6: Final answer
    x = 1,120.10

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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.