Home / 2,262.13-3,121.34-1,377.61

Finding the Fourth Proportional to 2,262.13, 3,121.34 and 1,377.61

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Solution

The fourth proportional to 2,262.13, 3,121.34 and 1,377.61 is: 1,900.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,262.13 : 3,121.34 = 1,377.61 : x
  2. Step 2: Convert to fraction form
    2,262.13/3,121.34 = 1,377.61/x
  3. Step 3: Cross multiply
    2,262.13x = 3,121.34 × 1,377.61
  4. Step 4: Simplify right side
    2,262.13x = 4,299,974.51
  5. Step 5: Solve for x
    x = 4,299,974.51/2,262.13
  6. Step 6: Final answer
    x = 1,900.85

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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.