Home / 5,112.74-7,057.78-3,996.74

Finding the Fourth Proportional to 5,112.74, 7,057.78 and 3,996.74

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Solution

The fourth proportional to 5,112.74, 7,057.78 and 3,996.74 is: 5,517.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,112.74 : 7,057.78 = 3,996.74 : x
  2. Step 2: Convert to fraction form
    5,112.74/7,057.78 = 3,996.74/x
  3. Step 3: Cross multiply
    5,112.74x = 7,057.78 × 3,996.74
  4. Step 4: Simplify right side
    5,112.74x = 28,208,111.64
  5. Step 5: Solve for x
    x = 28,208,111.64/5,112.74
  6. Step 6: Final answer
    x = 5,517.22

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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.