Home / 1,723.76-2,379-1,025.12

Finding the Fourth Proportional to 1,723.76, 2,379 and 1,025.12

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Solution

The fourth proportional to 1,723.76, 2,379 and 1,025.12 is: 1,414.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,723.76 : 2,379 = 1,025.12 : x
  2. Step 2: Convert to fraction form
    1,723.76/2,379 = 1,025.12/x
  3. Step 3: Cross multiply
    1,723.76x = 2,379 × 1,025.12
  4. Step 4: Simplify right side
    1,723.76x = 2,438,760.48
  5. Step 5: Solve for x
    x = 2,438,760.48/1,723.76
  6. Step 6: Final answer
    x = 1,414.79

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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.