Home / 4,791.32-7,188.86-3,147.56

Finding the Fourth Proportional to 4,791.32, 7,188.86 and 3,147.56

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Solution

The fourth proportional to 4,791.32, 7,188.86 and 3,147.56 is: 4,722.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,791.32 : 7,188.86 = 3,147.56 : x
  2. Step 2: Convert to fraction form
    4,791.32/7,188.86 = 3,147.56/x
  3. Step 3: Cross multiply
    4,791.32x = 7,188.86 × 3,147.56
  4. Step 4: Simplify right side
    4,791.32x = 22,627,340.11
  5. Step 5: Solve for x
    x = 22,627,340.11/4,791.32
  6. Step 6: Final answer
    x = 4,722.57

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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.