Home / 3,640.28-5,025.38-2,148.66

Finding the Fourth Proportional to 3,640.28, 5,025.38 and 2,148.66

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Solution

The fourth proportional to 3,640.28, 5,025.38 and 2,148.66 is: 2,966.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,640.28 : 5,025.38 = 2,148.66 : x
  2. Step 2: Convert to fraction form
    3,640.28/5,025.38 = 2,148.66/x
  3. Step 3: Cross multiply
    3,640.28x = 5,025.38 × 2,148.66
  4. Step 4: Simplify right side
    3,640.28x = 10,797,822.25
  5. Step 5: Solve for x
    x = 10,797,822.25/3,640.28
  6. Step 6: Final answer
    x = 2,966.21

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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.