Home / 3,728.28-5,559.90-3,308.70

Finding the Fourth Proportional to 3,728.28, 5,559.90 and 3,308.70

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Solution

The fourth proportional to 3,728.28, 5,559.90 and 3,308.70 is: 4,934.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,728.28 : 5,559.90 = 3,308.70 : x
  2. Step 2: Convert to fraction form
    3,728.28/5,559.90 = 3,308.70/x
  3. Step 3: Cross multiply
    3,728.28x = 5,559.90 × 3,308.70
  4. Step 4: Simplify right side
    3,728.28x = 18,396,041.13
  5. Step 5: Solve for x
    x = 18,396,041.13/3,728.28
  6. Step 6: Final answer
    x = 4,934.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.