Home / 5,426.13-8,139.38-1,728.75

Finding the Fourth Proportional to 5,426.13, 8,139.38 and 1,728.75

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Solution

The fourth proportional to 5,426.13, 8,139.38 and 1,728.75 is: 2,593.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,426.13 : 8,139.38 = 1,728.75 : x
  2. Step 2: Convert to fraction form
    5,426.13/8,139.38 = 1,728.75/x
  3. Step 3: Cross multiply
    5,426.13x = 8,139.38 × 1,728.75
  4. Step 4: Simplify right side
    5,426.13x = 14,070,944.53
  5. Step 5: Solve for x
    x = 14,070,944.53/5,426.13
  6. Step 6: Final answer
    x = 2,593.18

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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.