Home / 7,211.79-10,789.23-5,461.86

Finding the Fourth Proportional to 7,211.79, 10,789.23 and 5,461.86

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Solution

The fourth proportional to 7,211.79, 10,789.23 and 5,461.86 is: 8,171.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,211.79 : 10,789.23 = 5,461.86 : x
  2. Step 2: Convert to fraction form
    7,211.79/10,789.23 = 5,461.86/x
  3. Step 3: Cross multiply
    7,211.79x = 10,789.23 × 5,461.86
  4. Step 4: Simplify right side
    7,211.79x = 58,929,233.68
  5. Step 5: Solve for x
    x = 58,929,233.68/7,211.79
  6. Step 6: Final answer
    x = 8,171.23

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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.