Home / 3,126.89-4,313.82-2,008.48

Finding the Fourth Proportional to 3,126.89, 4,313.82 and 2,008.48

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Solution

The fourth proportional to 3,126.89, 4,313.82 and 2,008.48 is: 2,770.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.89 : 4,313.82 = 2,008.48 : x
  2. Step 2: Convert to fraction form
    3,126.89/4,313.82 = 2,008.48/x
  3. Step 3: Cross multiply
    3,126.89x = 4,313.82 × 2,008.48
  4. Step 4: Simplify right side
    3,126.89x = 8,664,221.19
  5. Step 5: Solve for x
    x = 8,664,221.19/3,126.89
  6. Step 6: Final answer
    x = 2,770.87

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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.