Home / 3,119.11-4,302.39-2,371.43

Finding the Fourth Proportional to 3,119.11, 4,302.39 and 2,371.43

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Solution

The fourth proportional to 3,119.11, 4,302.39 and 2,371.43 is: 3,271.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.11 : 4,302.39 = 2,371.43 : x
  2. Step 2: Convert to fraction form
    3,119.11/4,302.39 = 2,371.43/x
  3. Step 3: Cross multiply
    3,119.11x = 4,302.39 × 2,371.43
  4. Step 4: Simplify right side
    3,119.11x = 10,202,805.50
  5. Step 5: Solve for x
    x = 10,202,805.50/3,119.11
  6. Step 6: Final answer
    x = 3,271.07

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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.