Home / 7,864.16-11,792.59-3,180.47

Finding the Fourth Proportional to 7,864.16, 11,792.59 and 3,180.47

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Solution

The fourth proportional to 7,864.16, 11,792.59 and 3,180.47 is: 4,769.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,864.16 : 11,792.59 = 3,180.47 : x
  2. Step 2: Convert to fraction form
    7,864.16/11,792.59 = 3,180.47/x
  3. Step 3: Cross multiply
    7,864.16x = 11,792.59 × 3,180.47
  4. Step 4: Simplify right side
    7,864.16x = 37,505,911.80
  5. Step 5: Solve for x
    x = 37,505,911.80/7,864.16
  6. Step 6: Final answer
    x = 4,769.22

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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.