Home / 3,103.80-4,254.18-3,082.20

Finding the Fourth Proportional to 3,103.80, 4,254.18 and 3,082.20

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Solution

The fourth proportional to 3,103.80, 4,254.18 and 3,082.20 is: 4,224.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,103.80 : 4,254.18 = 3,082.20 : x
  2. Step 2: Convert to fraction form
    3,103.80/4,254.18 = 3,082.20/x
  3. Step 3: Cross multiply
    3,103.80x = 4,254.18 × 3,082.20
  4. Step 4: Simplify right side
    3,103.80x = 13,112,233.60
  5. Step 5: Solve for x
    x = 13,112,233.60/3,103.80
  6. Step 6: Final answer
    x = 4,224.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.