Home / 3,941.72-5,438.98-2,263.20

Finding the Fourth Proportional to 3,941.72, 5,438.98 and 2,263.20

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Solution

The fourth proportional to 3,941.72, 5,438.98 and 2,263.20 is: 3,122.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,941.72 : 5,438.98 = 2,263.20 : x
  2. Step 2: Convert to fraction form
    3,941.72/5,438.98 = 2,263.20/x
  3. Step 3: Cross multiply
    3,941.72x = 5,438.98 × 2,263.20
  4. Step 4: Simplify right side
    3,941.72x = 12,309,505.19
  5. Step 5: Solve for x
    x = 12,309,505.19/3,941.72
  6. Step 6: Final answer
    x = 3,122.87

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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.