Home / 3,121.01-4,326.72-2,954.56

Finding the Fourth Proportional to 3,121.01, 4,326.72 and 2,954.56

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Solution

The fourth proportional to 3,121.01, 4,326.72 and 2,954.56 is: 4,095.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121.01 : 4,326.72 = 2,954.56 : x
  2. Step 2: Convert to fraction form
    3,121.01/4,326.72 = 2,954.56/x
  3. Step 3: Cross multiply
    3,121.01x = 4,326.72 × 2,954.56
  4. Step 4: Simplify right side
    3,121.01x = 12,783,543.03
  5. Step 5: Solve for x
    x = 12,783,543.03/3,121.01
  6. Step 6: Final answer
    x = 4,095.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.