Home / 7,826.71-11,742.11-2,279.94

Finding the Fourth Proportional to 7,826.71, 11,742.11 and 2,279.94

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Solution

The fourth proportional to 7,826.71, 11,742.11 and 2,279.94 is: 3,420.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,826.71 : 11,742.11 = 2,279.94 : x
  2. Step 2: Convert to fraction form
    7,826.71/11,742.11 = 2,279.94/x
  3. Step 3: Cross multiply
    7,826.71x = 11,742.11 × 2,279.94
  4. Step 4: Simplify right side
    7,826.71x = 26,771,306.27
  5. Step 5: Solve for x
    x = 26,771,306.27/7,826.71
  6. Step 6: Final answer
    x = 3,420.51

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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.