Home / 1,724.41-2,378.67-1,251.75

Finding the Fourth Proportional to 1,724.41, 2,378.67 and 1,251.75

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Solution

The fourth proportional to 1,724.41, 2,378.67 and 1,251.75 is: 1,726.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,724.41 : 2,378.67 = 1,251.75 : x
  2. Step 2: Convert to fraction form
    1,724.41/2,378.67 = 1,251.75/x
  3. Step 3: Cross multiply
    1,724.41x = 2,378.67 × 1,251.75
  4. Step 4: Simplify right side
    1,724.41x = 2,977,500.17
  5. Step 5: Solve for x
    x = 2,977,500.17/1,724.41
  6. Step 6: Final answer
    x = 1,726.68

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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.