Home / 7,141.74-10,713.60-2,211.78

Finding the Fourth Proportional to 7,141.74, 10,713.60 and 2,211.78

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Solution

The fourth proportional to 7,141.74, 10,713.60 and 2,211.78 is: 3,317.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,141.74 : 10,713.60 = 2,211.78 : x
  2. Step 2: Convert to fraction form
    7,141.74/10,713.60 = 2,211.78/x
  3. Step 3: Cross multiply
    7,141.74x = 10,713.60 × 2,211.78
  4. Step 4: Simplify right side
    7,141.74x = 23,696,126.21
  5. Step 5: Solve for x
    x = 23,696,126.21/7,141.74
  6. Step 6: Final answer
    x = 3,317.98

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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.