Home / 2,151.20-2,960.10-2,086.97

Finding the Fourth Proportional to 2,151.20, 2,960.10 and 2,086.97

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Solution

The fourth proportional to 2,151.20, 2,960.10 and 2,086.97 is: 2,871.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,151.20 : 2,960.10 = 2,086.97 : x
  2. Step 2: Convert to fraction form
    2,151.20/2,960.10 = 2,086.97/x
  3. Step 3: Cross multiply
    2,151.20x = 2,960.10 × 2,086.97
  4. Step 4: Simplify right side
    2,151.20x = 6,177,625.10
  5. Step 5: Solve for x
    x = 6,177,625.10/2,151.20
  6. Step 6: Final answer
    x = 2,871.72

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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.