Home / 3,143.87-4,328.61-2,395.43

Finding the Fourth Proportional to 3,143.87, 4,328.61 and 2,395.43

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Solution

The fourth proportional to 3,143.87, 4,328.61 and 2,395.43 is: 3,298.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.87 : 4,328.61 = 2,395.43 : x
  2. Step 2: Convert to fraction form
    3,143.87/4,328.61 = 2,395.43/x
  3. Step 3: Cross multiply
    3,143.87x = 4,328.61 × 2,395.43
  4. Step 4: Simplify right side
    3,143.87x = 10,368,882.25
  5. Step 5: Solve for x
    x = 10,368,882.25/3,143.87
  6. Step 6: Final answer
    x = 3,298.13

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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.