Home / 2,515.20-3,765.60-2,227.20

Finding the Fourth Proportional to 2,515.20, 3,765.60 and 2,227.20

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Solution

The fourth proportional to 2,515.20, 3,765.60 and 2,227.20 is: 3,334.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,515.20 : 3,765.60 = 2,227.20 : x
  2. Step 2: Convert to fraction form
    2,515.20/3,765.60 = 2,227.20/x
  3. Step 3: Cross multiply
    2,515.20x = 3,765.60 × 2,227.20
  4. Step 4: Simplify right side
    2,515.20x = 8,386,744.32
  5. Step 5: Solve for x
    x = 8,386,744.32/2,515.20
  6. Step 6: Final answer
    x = 3,334.42

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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.