Home / 2,102.27-3,155.22-1,372.65

Finding the Fourth Proportional to 2,102.27, 3,155.22 and 1,372.65

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Solution

The fourth proportional to 2,102.27, 3,155.22 and 1,372.65 is: 2,060.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,102.27 : 3,155.22 = 1,372.65 : x
  2. Step 2: Convert to fraction form
    2,102.27/3,155.22 = 1,372.65/x
  3. Step 3: Cross multiply
    2,102.27x = 3,155.22 × 1,372.65
  4. Step 4: Simplify right side
    2,102.27x = 4,331,012.73
  5. Step 5: Solve for x
    x = 4,331,012.73/2,102.27
  6. Step 6: Final answer
    x = 2,060.16

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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.