Home / 5,197.13-7,172.04-2,839.26

Finding the Fourth Proportional to 5,197.13, 7,172.04 and 2,839.26

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Solution

The fourth proportional to 5,197.13, 7,172.04 and 2,839.26 is: 3,918.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,197.13 : 7,172.04 = 2,839.26 : x
  2. Step 2: Convert to fraction form
    5,197.13/7,172.04 = 2,839.26/x
  3. Step 3: Cross multiply
    5,197.13x = 7,172.04 × 2,839.26
  4. Step 4: Simplify right side
    5,197.13x = 20,363,286.29
  5. Step 5: Solve for x
    x = 20,363,286.29/5,197.13
  6. Step 6: Final answer
    x = 3,918.18

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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.