Home / 5,211.72-7,194.78-3,541.92

Finding the Fourth Proportional to 5,211.72, 7,194.78 and 3,541.92

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Solution

The fourth proportional to 5,211.72, 7,194.78 and 3,541.92 is: 4,889.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.72 : 7,194.78 = 3,541.92 : x
  2. Step 2: Convert to fraction form
    5,211.72/7,194.78 = 3,541.92/x
  3. Step 3: Cross multiply
    5,211.72x = 7,194.78 × 3,541.92
  4. Step 4: Simplify right side
    5,211.72x = 25,483,335.18
  5. Step 5: Solve for x
    x = 25,483,335.18/5,211.72
  6. Step 6: Final answer
    x = 4,889.62

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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.