Home / 1,974.92-2,726.28-1,418.18

Finding the Fourth Proportional to 1,974.92, 2,726.28 and 1,418.18

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Solution

The fourth proportional to 1,974.92, 2,726.28 and 1,418.18 is: 1,957.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,974.92 : 2,726.28 = 1,418.18 : x
  2. Step 2: Convert to fraction form
    1,974.92/2,726.28 = 1,418.18/x
  3. Step 3: Cross multiply
    1,974.92x = 2,726.28 × 1,418.18
  4. Step 4: Simplify right side
    1,974.92x = 3,866,342.14
  5. Step 5: Solve for x
    x = 3,866,342.14/1,974.92
  6. Step 6: Final answer
    x = 1,957.73

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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.