Home / 7,987.97-11,981.88-2,064.84

Finding the Fourth Proportional to 7,987.97, 11,981.88 and 2,064.84

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Solution

The fourth proportional to 7,987.97, 11,981.88 and 2,064.84 is: 3,097.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,987.97 : 11,981.88 = 2,064.84 : x
  2. Step 2: Convert to fraction form
    7,987.97/11,981.88 = 2,064.84/x
  3. Step 3: Cross multiply
    7,987.97x = 11,981.88 × 2,064.84
  4. Step 4: Simplify right side
    7,987.97x = 24,740,665.10
  5. Step 5: Solve for x
    x = 24,740,665.10/7,987.97
  6. Step 6: Final answer
    x = 3,097.24

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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.