Home / 7,211.79-10,818.66-3,513.54

Finding the Fourth Proportional to 7,211.79, 10,818.66 and 3,513.54

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Solution

The fourth proportional to 7,211.79, 10,818.66 and 3,513.54 is: 5,270.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,211.79 : 10,818.66 = 3,513.54 : x
  2. Step 2: Convert to fraction form
    7,211.79/10,818.66 = 3,513.54/x
  3. Step 3: Cross multiply
    7,211.79x = 10,818.66 × 3,513.54
  4. Step 4: Simplify right side
    7,211.79x = 38,011,794.66
  5. Step 5: Solve for x
    x = 38,011,794.66/7,211.79
  6. Step 6: Final answer
    x = 5,270.79

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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.