Home / 2,261.92-3,121.42-1,267.19

Finding the Fourth Proportional to 2,261.92, 3,121.42 and 1,267.19

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Solution

The fourth proportional to 2,261.92, 3,121.42 and 1,267.19 is: 1,748.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,261.92 : 3,121.42 = 1,267.19 : x
  2. Step 2: Convert to fraction form
    2,261.92/3,121.42 = 1,267.19/x
  3. Step 3: Cross multiply
    2,261.92x = 3,121.42 × 1,267.19
  4. Step 4: Simplify right side
    2,261.92x = 3,955,432.21
  5. Step 5: Solve for x
    x = 3,955,432.21/2,261.92
  6. Step 6: Final answer
    x = 1,748.71

Related Problems

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Half scale
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Double scale
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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.