Home / 2,151.88-3,202.09-2,144.59

Finding the Fourth Proportional to 2,151.88, 3,202.09 and 2,144.59

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Solution

The fourth proportional to 2,151.88, 3,202.09 and 2,144.59 is: 3,191.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,151.88 : 3,202.09 = 2,144.59 : x
  2. Step 2: Convert to fraction form
    2,151.88/3,202.09 = 2,144.59/x
  3. Step 3: Cross multiply
    2,151.88x = 3,202.09 × 2,144.59
  4. Step 4: Simplify right side
    2,151.88x = 6,867,156.83
  5. Step 5: Solve for x
    x = 6,867,156.83/2,151.88
  6. Step 6: Final answer
    x = 3,191.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.