Home / 3,122.30-4,295.85-2,371.88

Finding the Fourth Proportional to 3,122.30, 4,295.85 and 2,371.88

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Solution

The fourth proportional to 3,122.30, 4,295.85 and 2,371.88 is: 3,263.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.30 : 4,295.85 = 2,371.88 : x
  2. Step 2: Convert to fraction form
    3,122.30/4,295.85 = 2,371.88/x
  3. Step 3: Cross multiply
    3,122.30x = 4,295.85 × 2,371.88
  4. Step 4: Simplify right side
    3,122.30x = 10,189,240.70
  5. Step 5: Solve for x
    x = 10,189,240.70/3,122.30
  6. Step 6: Final answer
    x = 3,263.38

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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.