Home / 3,207.11-4,426.18-1,809.75

Finding the Fourth Proportional to 3,207.11, 4,426.18 and 1,809.75

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Solution

The fourth proportional to 3,207.11, 4,426.18 and 1,809.75 is: 2,497.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,207.11 : 4,426.18 = 1,809.75 : x
  2. Step 2: Convert to fraction form
    3,207.11/4,426.18 = 1,809.75/x
  3. Step 3: Cross multiply
    3,207.11x = 4,426.18 × 1,809.75
  4. Step 4: Simplify right side
    3,207.11x = 8,010,270.21
  5. Step 5: Solve for x
    x = 8,010,270.21/3,207.11
  6. Step 6: Final answer
    x = 2,497.66

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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.