Home / 3,143.57-4,343.90-2,396.21

Finding the Fourth Proportional to 3,143.57, 4,343.90 and 2,396.21

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Solution

The fourth proportional to 3,143.57, 4,343.90 and 2,396.21 is: 3,311.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.57 : 4,343.90 = 2,396.21 : x
  2. Step 2: Convert to fraction form
    3,143.57/4,343.90 = 2,396.21/x
  3. Step 3: Cross multiply
    3,143.57x = 4,343.90 × 2,396.21
  4. Step 4: Simplify right side
    3,143.57x = 10,408,862.92
  5. Step 5: Solve for x
    x = 10,408,862.92/3,143.57
  6. Step 6: Final answer
    x = 3,311.17

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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.