Home / 2,121.76-3,182.19-1,503.73

Finding the Fourth Proportional to 2,121.76, 3,182.19 and 1,503.73

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Solution

The fourth proportional to 2,121.76, 3,182.19 and 1,503.73 is: 2,255.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121.76 : 3,182.19 = 1,503.73 : x
  2. Step 2: Convert to fraction form
    2,121.76/3,182.19 = 1,503.73/x
  3. Step 3: Cross multiply
    2,121.76x = 3,182.19 × 1,503.73
  4. Step 4: Simplify right side
    2,121.76x = 4,785,154.57
  5. Step 5: Solve for x
    x = 4,785,154.57/2,121.76
  6. Step 6: Final answer
    x = 2,255.28

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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.