Home / 6,820.11-10,211.10-3,688.89

Finding the Fourth Proportional to 6,820.11, 10,211.10 and 3,688.89

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Solution

The fourth proportional to 6,820.11, 10,211.10 and 3,688.89 is: 5,523.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,820.11 : 10,211.10 = 3,688.89 : x
  2. Step 2: Convert to fraction form
    6,820.11/10,211.10 = 3,688.89/x
  3. Step 3: Cross multiply
    6,820.11x = 10,211.10 × 3,688.89
  4. Step 4: Simplify right side
    6,820.11x = 37,667,624.68
  5. Step 5: Solve for x
    x = 37,667,624.68/6,820.11
  6. Step 6: Final answer
    x = 5,523.02

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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.