Home / 3,171.94-4,375.24-2,177.77

Finding the Fourth Proportional to 3,171.94, 4,375.24 and 2,177.77

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Solution

The fourth proportional to 3,171.94, 4,375.24 and 2,177.77 is: 3,003.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.94 : 4,375.24 = 2,177.77 : x
  2. Step 2: Convert to fraction form
    3,171.94/4,375.24 = 2,177.77/x
  3. Step 3: Cross multiply
    3,171.94x = 4,375.24 × 2,177.77
  4. Step 4: Simplify right side
    3,171.94x = 9,528,264.36
  5. Step 5: Solve for x
    x = 9,528,264.36/3,171.94
  6. Step 6: Final answer
    x = 3,003.92

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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.