Home / 6,974.26-9,625.16-3,990.53

Finding the Fourth Proportional to 6,974.26, 9,625.16 and 3,990.53

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Solution

The fourth proportional to 6,974.26, 9,625.16 and 3,990.53 is: 5,507.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,974.26 : 9,625.16 = 3,990.53 : x
  2. Step 2: Convert to fraction form
    6,974.26/9,625.16 = 3,990.53/x
  3. Step 3: Cross multiply
    6,974.26x = 9,625.16 × 3,990.53
  4. Step 4: Simplify right side
    6,974.26x = 38,409,489.73
  5. Step 5: Solve for x
    x = 38,409,489.73/6,974.26
  6. Step 6: Final answer
    x = 5,507.32

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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.