Home / 4,112.88-6,170.33-1,191.48

Finding the Fourth Proportional to 4,112.88, 6,170.33 and 1,191.48

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Solution

The fourth proportional to 4,112.88, 6,170.33 and 1,191.48 is: 1,787.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,112.88 : 6,170.33 = 1,191.48 : x
  2. Step 2: Convert to fraction form
    4,112.88/6,170.33 = 1,191.48/x
  3. Step 3: Cross multiply
    4,112.88x = 6,170.33 × 1,191.48
  4. Step 4: Simplify right side
    4,112.88x = 7,351,824.79
  5. Step 5: Solve for x
    x = 7,351,824.79/4,112.88
  6. Step 6: Final answer
    x = 1,787.51

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Double scale
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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.