Home / 7,981.62-11,965.73-3,475.31

Finding the Fourth Proportional to 7,981.62, 11,965.73 and 3,475.31

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Solution

The fourth proportional to 7,981.62, 11,965.73 and 3,475.31 is: 5,210.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981.62 : 11,965.73 = 3,475.31 : x
  2. Step 2: Convert to fraction form
    7,981.62/11,965.73 = 3,475.31/x
  3. Step 3: Cross multiply
    7,981.62x = 11,965.73 × 3,475.31
  4. Step 4: Simplify right side
    7,981.62x = 41,584,543.92
  5. Step 5: Solve for x
    x = 41,584,543.92/7,981.62
  6. Step 6: Final answer
    x = 5,210.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.