Home / 5,659.92-7,810.26-3,142.11

Finding the Fourth Proportional to 5,659.92, 7,810.26 and 3,142.11

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Solution

The fourth proportional to 5,659.92, 7,810.26 and 3,142.11 is: 4,335.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,659.92 : 7,810.26 = 3,142.11 : x
  2. Step 2: Convert to fraction form
    5,659.92/7,810.26 = 3,142.11/x
  3. Step 3: Cross multiply
    5,659.92x = 7,810.26 × 3,142.11
  4. Step 4: Simplify right side
    5,659.92x = 24,540,696.05
  5. Step 5: Solve for x
    x = 24,540,696.05/5,659.92
  6. Step 6: Final answer
    x = 4,335.87

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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.