Home / 2,761.92-4,143.06-1,118.43

Finding the Fourth Proportional to 2,761.92, 4,143.06 and 1,118.43

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Solution

The fourth proportional to 2,761.92, 4,143.06 and 1,118.43 is: 1,677.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,761.92 : 4,143.06 = 1,118.43 : x
  2. Step 2: Convert to fraction form
    2,761.92/4,143.06 = 1,118.43/x
  3. Step 3: Cross multiply
    2,761.92x = 4,143.06 × 1,118.43
  4. Step 4: Simplify right side
    2,761.92x = 4,633,722.60
  5. Step 5: Solve for x
    x = 4,633,722.60/2,761.92
  6. Step 6: Final answer
    x = 1,677.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.