Home / 2,170.28-2,995.49-1,412.73

Finding the Fourth Proportional to 2,170.28, 2,995.49 and 1,412.73

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Solution

The fourth proportional to 2,170.28, 2,995.49 and 1,412.73 is: 1,949.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170.28 : 2,995.49 = 1,412.73 : x
  2. Step 2: Convert to fraction form
    2,170.28/2,995.49 = 1,412.73/x
  3. Step 3: Cross multiply
    2,170.28x = 2,995.49 × 1,412.73
  4. Step 4: Simplify right side
    2,170.28x = 4,231,811.52
  5. Step 5: Solve for x
    x = 4,231,811.52/2,170.28
  6. Step 6: Final answer
    x = 1,949.90

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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.