Home / 3,657.38-5,047.20-2,086.38

Finding the Fourth Proportional to 3,657.38, 5,047.20 and 2,086.38

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Solution

The fourth proportional to 3,657.38, 5,047.20 and 2,086.38 is: 2,879.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,657.38 : 5,047.20 = 2,086.38 : x
  2. Step 2: Convert to fraction form
    3,657.38/5,047.20 = 2,086.38/x
  3. Step 3: Cross multiply
    3,657.38x = 5,047.20 × 2,086.38
  4. Step 4: Simplify right side
    3,657.38x = 10,530,377.14
  5. Step 5: Solve for x
    x = 10,530,377.14/3,657.38
  6. Step 6: Final answer
    x = 2,879.22

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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.