Home / 5,143.41-7,707.02-3,976.28

Finding the Fourth Proportional to 5,143.41, 7,707.02 and 3,976.28

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Solution

The fourth proportional to 5,143.41, 7,707.02 and 3,976.28 is: 5,958.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,143.41 : 7,707.02 = 3,976.28 : x
  2. Step 2: Convert to fraction form
    5,143.41/7,707.02 = 3,976.28/x
  3. Step 3: Cross multiply
    5,143.41x = 7,707.02 × 3,976.28
  4. Step 4: Simplify right side
    5,143.41x = 30,645,262.68
  5. Step 5: Solve for x
    x = 30,645,262.68/5,143.41
  6. Step 6: Final answer
    x = 5,958.16

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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.