Home / 7,170.62-9,895.32-3,983.93

Finding the Fourth Proportional to 7,170.62, 9,895.32 and 3,983.93

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Solution

The fourth proportional to 7,170.62, 9,895.32 and 3,983.93 is: 5,497.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,170.62 : 9,895.32 = 3,983.93 : x
  2. Step 2: Convert to fraction form
    7,170.62/9,895.32 = 3,983.93/x
  3. Step 3: Cross multiply
    7,170.62x = 9,895.32 × 3,983.93
  4. Step 4: Simplify right side
    7,170.62x = 39,422,212.73
  5. Step 5: Solve for x
    x = 39,422,212.73/7,170.62
  6. Step 6: Final answer
    x = 5,497.74

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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.