Home / 5,728.20-8,593.92-2,219.28

Finding the Fourth Proportional to 5,728.20, 8,593.92 and 2,219.28

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Solution

The fourth proportional to 5,728.20, 8,593.92 and 2,219.28 is: 3,329.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,728.20 : 8,593.92 = 2,219.28 : x
  2. Step 2: Convert to fraction form
    5,728.20/8,593.92 = 2,219.28/x
  3. Step 3: Cross multiply
    5,728.20x = 8,593.92 × 2,219.28
  4. Step 4: Simplify right side
    5,728.20x = 19,072,314.78
  5. Step 5: Solve for x
    x = 19,072,314.78/5,728.20
  6. Step 6: Final answer
    x = 3,329.55

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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.