Home / 7,126.57-9,833.56-3,982.15

Finding the Fourth Proportional to 7,126.57, 9,833.56 and 3,982.15

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Solution

The fourth proportional to 7,126.57, 9,833.56 and 3,982.15 is: 5,494.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,126.57 : 9,833.56 = 3,982.15 : x
  2. Step 2: Convert to fraction form
    7,126.57/9,833.56 = 3,982.15/x
  3. Step 3: Cross multiply
    7,126.57x = 9,833.56 × 3,982.15
  4. Step 4: Simplify right side
    7,126.57x = 39,158,710.95
  5. Step 5: Solve for x
    x = 39,158,710.95/7,126.57
  6. Step 6: Final answer
    x = 5,494.75

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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.