Home / 3,278.90-4,520.03-2,882.18

Finding the Fourth Proportional to 3,278.90, 4,520.03 and 2,882.18

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Solution

The fourth proportional to 3,278.90, 4,520.03 and 2,882.18 is: 3,973.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.90 : 4,520.03 = 2,882.18 : x
  2. Step 2: Convert to fraction form
    3,278.90/4,520.03 = 2,882.18/x
  3. Step 3: Cross multiply
    3,278.90x = 4,520.03 × 2,882.18
  4. Step 4: Simplify right side
    3,278.90x = 13,027,503.05
  5. Step 5: Solve for x
    x = 13,027,503.05/3,278.90
  6. Step 6: Final answer
    x = 3,973.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.