Home / 3,147.26-4,343.27-1,731.06

Finding the Fourth Proportional to 3,147.26, 4,343.27 and 1,731.06

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Solution

The fourth proportional to 3,147.26, 4,343.27 and 1,731.06 is: 2,388.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147.26 : 4,343.27 = 1,731.06 : x
  2. Step 2: Convert to fraction form
    3,147.26/4,343.27 = 1,731.06/x
  3. Step 3: Cross multiply
    3,147.26x = 4,343.27 × 1,731.06
  4. Step 4: Simplify right side
    3,147.26x = 7,518,452.31
  5. Step 5: Solve for x
    x = 7,518,452.31/3,147.26
  6. Step 6: Final answer
    x = 2,388.89

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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.