Home / 3,849.57-5,312.41-2,255.90

Finding the Fourth Proportional to 3,849.57, 5,312.41 and 2,255.90

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Solution

The fourth proportional to 3,849.57, 5,312.41 and 2,255.90 is: 3,113.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,849.57 : 5,312.41 = 2,255.90 : x
  2. Step 2: Convert to fraction form
    3,849.57/5,312.41 = 2,255.90/x
  3. Step 3: Cross multiply
    3,849.57x = 5,312.41 × 2,255.90
  4. Step 4: Simplify right side
    3,849.57x = 11,984,265.72
  5. Step 5: Solve for x
    x = 11,984,265.72/3,849.57
  6. Step 6: Final answer
    x = 3,113.14

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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.