Home / 3,211.68-4,426.80-2,932.86

Finding the Fourth Proportional to 3,211.68, 4,426.80 and 2,932.86

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Solution

The fourth proportional to 3,211.68, 4,426.80 and 2,932.86 is: 4,042.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.68 : 4,426.80 = 2,932.86 : x
  2. Step 2: Convert to fraction form
    3,211.68/4,426.80 = 2,932.86/x
  3. Step 3: Cross multiply
    3,211.68x = 4,426.80 × 2,932.86
  4. Step 4: Simplify right side
    3,211.68x = 12,983,184.65
  5. Step 5: Solve for x
    x = 12,983,184.65/3,211.68
  6. Step 6: Final answer
    x = 4,042.49

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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.