Home / 6,979-9,630.76-3,792.16

Finding the Fourth Proportional to 6,979, 9,630.76 and 3,792.16

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Solution

The fourth proportional to 6,979, 9,630.76 and 3,792.16 is: 5,233.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,979 : 9,630.76 = 3,792.16 : x
  2. Step 2: Convert to fraction form
    6,979/9,630.76 = 3,792.16/x
  3. Step 3: Cross multiply
    6,979x = 9,630.76 × 3,792.16
  4. Step 4: Simplify right side
    6,979x = 36,521,382.84
  5. Step 5: Solve for x
    x = 36,521,382.84/6,979
  6. Step 6: Final answer
    x = 5,233.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.