Home / 3,549.20-5,328.60-2,819.60

Finding the Fourth Proportional to 3,549.20, 5,328.60 and 2,819.60

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Solution

The fourth proportional to 3,549.20, 5,328.60 and 2,819.60 is: 4,233.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,549.20 : 5,328.60 = 2,819.60 : x
  2. Step 2: Convert to fraction form
    3,549.20/5,328.60 = 2,819.60/x
  3. Step 3: Cross multiply
    3,549.20x = 5,328.60 × 2,819.60
  4. Step 4: Simplify right side
    3,549.20x = 15,024,520.56
  5. Step 5: Solve for x
    x = 15,024,520.56/3,549.20
  6. Step 6: Final answer
    x = 4,233.21

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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.