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Finding the Fourth Proportional to 3,134.62, 4,326.86 and 1,808.86

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Solution

The fourth proportional to 3,134.62, 4,326.86 and 1,808.86 is: 2,496.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,134.62 : 4,326.86 = 1,808.86 : x
  2. Step 2: Convert to fraction form
    3,134.62/4,326.86 = 1,808.86/x
  3. Step 3: Cross multiply
    3,134.62x = 4,326.86 × 1,808.86
  4. Step 4: Simplify right side
    3,134.62x = 7,826,683.98
  5. Step 5: Solve for x
    x = 7,826,683.98/3,134.62
  6. Step 6: Final answer
    x = 2,496.85

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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.