Home / 7,987.69-11,981.53-2,440.73

Finding the Fourth Proportional to 7,987.69, 11,981.53 and 2,440.73

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Solution

The fourth proportional to 7,987.69, 11,981.53 and 2,440.73 is: 3,661.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,987.69 : 11,981.53 = 2,440.73 : x
  2. Step 2: Convert to fraction form
    7,987.69/11,981.53 = 2,440.73/x
  3. Step 3: Cross multiply
    7,987.69x = 11,981.53 × 2,440.73
  4. Step 4: Simplify right side
    7,987.69x = 29,243,679.72
  5. Step 5: Solve for x
    x = 29,243,679.72/7,987.69
  6. Step 6: Final answer
    x = 3,661.09

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Similar ratio
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1.5x scale

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.