Home / 3,142.19-4,708.15-1,909.96

Finding the Fourth Proportional to 3,142.19, 4,708.15 and 1,909.96

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Solution

The fourth proportional to 3,142.19, 4,708.15 and 1,909.96 is: 2,861.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,142.19 : 4,708.15 = 1,909.96 : x
  2. Step 2: Convert to fraction form
    3,142.19/4,708.15 = 1,909.96/x
  3. Step 3: Cross multiply
    3,142.19x = 4,708.15 × 1,909.96
  4. Step 4: Simplify right side
    3,142.19x = 8,992,361.63
  5. Step 5: Solve for x
    x = 8,992,361.63/3,142.19
  6. Step 6: Final answer
    x = 2,861.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.