Home / 5,191.96-7,781.78-2,996.14

Finding the Fourth Proportional to 5,191.96, 7,781.78 and 2,996.14

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Solution

The fourth proportional to 5,191.96, 7,781.78 and 2,996.14 is: 4,490.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,191.96 : 7,781.78 = 2,996.14 : x
  2. Step 2: Convert to fraction form
    5,191.96/7,781.78 = 2,996.14/x
  3. Step 3: Cross multiply
    5,191.96x = 7,781.78 × 2,996.14
  4. Step 4: Simplify right side
    5,191.96x = 23,315,302.33
  5. Step 5: Solve for x
    x = 23,315,302.33/5,191.96
  6. Step 6: Final answer
    x = 4,490.66

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1.5x scale

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.