Home / 3,147.57-4,343.67-1,731.22

Finding the Fourth Proportional to 3,147.57, 4,343.67 and 1,731.22

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Solution

The fourth proportional to 3,147.57, 4,343.67 and 1,731.22 is: 2,389.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147.57 : 4,343.67 = 1,731.22 : x
  2. Step 2: Convert to fraction form
    3,147.57/4,343.67 = 1,731.22/x
  3. Step 3: Cross multiply
    3,147.57x = 4,343.67 × 1,731.22
  4. Step 4: Simplify right side
    3,147.57x = 7,519,844.05
  5. Step 5: Solve for x
    x = 7,519,844.05/3,147.57
  6. Step 6: Final answer
    x = 2,389.10

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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.