Home / 7,987.74-11,981.84-2,064.53

Finding the Fourth Proportional to 7,987.74, 11,981.84 and 2,064.53

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Solution

The fourth proportional to 7,987.74, 11,981.84 and 2,064.53 is: 3,096.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,987.74 : 11,981.84 = 2,064.53 : x
  2. Step 2: Convert to fraction form
    7,987.74/11,981.84 = 2,064.53/x
  3. Step 3: Cross multiply
    7,987.74x = 11,981.84 × 2,064.53
  4. Step 4: Simplify right side
    7,987.74x = 24,736,797.90
  5. Step 5: Solve for x
    x = 24,736,797.90/7,987.74
  6. Step 6: Final answer
    x = 3,096.85

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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.