Home / 7,989.65-11,977.18-2,792.69

Finding the Fourth Proportional to 7,989.65, 11,977.18 and 2,792.69

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Solution

The fourth proportional to 7,989.65, 11,977.18 and 2,792.69 is: 4,186.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,989.65 : 11,977.18 = 2,792.69 : x
  2. Step 2: Convert to fraction form
    7,989.65/11,977.18 = 2,792.69/x
  3. Step 3: Cross multiply
    7,989.65x = 11,977.18 × 2,792.69
  4. Step 4: Simplify right side
    7,989.65x = 33,448,476.96
  5. Step 5: Solve for x
    x = 33,448,476.96/7,989.65
  6. Step 6: Final answer
    x = 4,186.48

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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.