Home / 5,197.27-7,172.31-3,687.49

Finding the Fourth Proportional to 5,197.27, 7,172.31 and 3,687.49

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Solution

The fourth proportional to 5,197.27, 7,172.31 and 3,687.49 is: 5,088.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,197.27 : 7,172.31 = 3,687.49 : x
  2. Step 2: Convert to fraction form
    5,197.27/7,172.31 = 3,687.49/x
  3. Step 3: Cross multiply
    5,197.27x = 7,172.31 × 3,687.49
  4. Step 4: Simplify right side
    5,197.27x = 26,447,821.40
  5. Step 5: Solve for x
    x = 26,447,821.40/5,197.27
  6. Step 6: Final answer
    x = 5,088.79

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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.