Home / 5,219.42-7,202.88-2,861.66

Finding the Fourth Proportional to 5,219.42, 7,202.88 and 2,861.66

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Solution

The fourth proportional to 5,219.42, 7,202.88 and 2,861.66 is: 3,949.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,219.42 : 7,202.88 = 2,861.66 : x
  2. Step 2: Convert to fraction form
    5,219.42/7,202.88 = 2,861.66/x
  3. Step 3: Cross multiply
    5,219.42x = 7,202.88 × 2,861.66
  4. Step 4: Simplify right side
    5,219.42x = 20,612,193.58
  5. Step 5: Solve for x
    x = 20,612,193.58/5,219.42
  6. Step 6: Final answer
    x = 3,949.13

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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.