Home / 6,983.55-9,634.57-3,997.79

Finding the Fourth Proportional to 6,983.55, 9,634.57 and 3,997.79

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Solution

The fourth proportional to 6,983.55, 9,634.57 and 3,997.79 is: 5,515.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,983.55 : 9,634.57 = 3,997.79 : x
  2. Step 2: Convert to fraction form
    6,983.55/9,634.57 = 3,997.79/x
  3. Step 3: Cross multiply
    6,983.55x = 9,634.57 × 3,997.79
  4. Step 4: Simplify right side
    6,983.55x = 38,516,929.43
  5. Step 5: Solve for x
    x = 38,516,929.43/6,983.55
  6. Step 6: Final answer
    x = 5,515.38

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Double scale
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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.