Home / 3,426.31-5,139.49-1,086.27

Finding the Fourth Proportional to 3,426.31, 5,139.49 and 1,086.27

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Solution

The fourth proportional to 3,426.31, 5,139.49 and 1,086.27 is: 1,629.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,426.31 : 5,139.49 = 1,086.27 : x
  2. Step 2: Convert to fraction form
    3,426.31/5,139.49 = 1,086.27/x
  3. Step 3: Cross multiply
    3,426.31x = 5,139.49 × 1,086.27
  4. Step 4: Simplify right side
    3,426.31x = 5,582,873.80
  5. Step 5: Solve for x
    x = 5,582,873.80/3,426.31
  6. Step 6: Final answer
    x = 1,629.41

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Double scale
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Similar ratio
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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.