Home / 4,912.92-6,781.25-2,999.43

Finding the Fourth Proportional to 4,912.92, 6,781.25 and 2,999.43

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Solution

The fourth proportional to 4,912.92, 6,781.25 and 2,999.43 is: 4,140.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,912.92 : 6,781.25 = 2,999.43 : x
  2. Step 2: Convert to fraction form
    4,912.92/6,781.25 = 2,999.43/x
  3. Step 3: Cross multiply
    4,912.92x = 6,781.25 × 2,999.43
  4. Step 4: Simplify right side
    4,912.92x = 20,339,892.19
  5. Step 5: Solve for x
    x = 20,339,892.19/4,912.92
  6. Step 6: Final answer
    x = 4,140.08

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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.