Home / 6,634.35-9,155.39-3,981.75

Finding the Fourth Proportional to 6,634.35, 9,155.39 and 3,981.75

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Solution

The fourth proportional to 6,634.35, 9,155.39 and 3,981.75 is: 5,494.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,634.35 : 9,155.39 = 3,981.75 : x
  2. Step 2: Convert to fraction form
    6,634.35/9,155.39 = 3,981.75/x
  3. Step 3: Cross multiply
    6,634.35x = 9,155.39 × 3,981.75
  4. Step 4: Simplify right side
    6,634.35x = 36,454,454.22
  5. Step 5: Solve for x
    x = 36,454,454.22/6,634.35
  6. Step 6: Final answer
    x = 5,494.80

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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.