Home / 1,974.61-2,723.21-1,275.25

Finding the Fourth Proportional to 1,974.61, 2,723.21 and 1,275.25

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Solution

The fourth proportional to 1,974.61, 2,723.21 and 1,275.25 is: 1,758.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,974.61 : 2,723.21 = 1,275.25 : x
  2. Step 2: Convert to fraction form
    1,974.61/2,723.21 = 1,275.25/x
  3. Step 3: Cross multiply
    1,974.61x = 2,723.21 × 1,275.25
  4. Step 4: Simplify right side
    1,974.61x = 3,472,767.18
  5. Step 5: Solve for x
    x = 3,472,767.18/1,974.61
  6. Step 6: Final answer
    x = 1,758.71

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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.