Home / 2,520.46-3,481.56-2,102.18

Finding the Fourth Proportional to 2,520.46, 3,481.56 and 2,102.18

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Solution

The fourth proportional to 2,520.46, 3,481.56 and 2,102.18 is: 2,903.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,520.46 : 3,481.56 = 2,102.18 : x
  2. Step 2: Convert to fraction form
    2,520.46/3,481.56 = 2,102.18/x
  3. Step 3: Cross multiply
    2,520.46x = 3,481.56 × 2,102.18
  4. Step 4: Simplify right side
    2,520.46x = 7,318,865.80
  5. Step 5: Solve for x
    x = 7,318,865.80/2,520.46
  6. Step 6: Final answer
    x = 2,903.78

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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.