Home / 3,147.94-4,344.25-1,731.55

Finding the Fourth Proportional to 3,147.94, 4,344.25 and 1,731.55

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Solution

The fourth proportional to 3,147.94, 4,344.25 and 1,731.55 is: 2,389.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147.94 : 4,344.25 = 1,731.55 : x
  2. Step 2: Convert to fraction form
    3,147.94/4,344.25 = 1,731.55/x
  3. Step 3: Cross multiply
    3,147.94x = 4,344.25 × 1,731.55
  4. Step 4: Simplify right side
    3,147.94x = 7,522,293.68
  5. Step 5: Solve for x
    x = 7,522,293.68/3,147.94
  6. Step 6: Final answer
    x = 2,389.59

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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.