Home / 3,121.11-4,687.22-2,995.66

Finding the Fourth Proportional to 3,121.11, 4,687.22 and 2,995.66

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Solution

The fourth proportional to 3,121.11, 4,687.22 and 2,995.66 is: 4,498.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121.11 : 4,687.22 = 2,995.66 : x
  2. Step 2: Convert to fraction form
    3,121.11/4,687.22 = 2,995.66/x
  3. Step 3: Cross multiply
    3,121.11x = 4,687.22 × 2,995.66
  4. Step 4: Simplify right side
    3,121.11x = 14,041,317.47
  5. Step 5: Solve for x
    x = 14,041,317.47/3,121.11
  6. Step 6: Final answer
    x = 4,498.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.