Home / 7,834.12-11,749.98-2,569.69

Finding the Fourth Proportional to 7,834.12, 11,749.98 and 2,569.69

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Solution

The fourth proportional to 7,834.12, 11,749.98 and 2,569.69 is: 3,854.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,834.12 : 11,749.98 = 2,569.69 : x
  2. Step 2: Convert to fraction form
    7,834.12/11,749.98 = 2,569.69/x
  3. Step 3: Cross multiply
    7,834.12x = 11,749.98 × 2,569.69
  4. Step 4: Simplify right side
    7,834.12x = 30,193,806.11
  5. Step 5: Solve for x
    x = 30,193,806.11/7,834.12
  6. Step 6: Final answer
    x = 3,854.14

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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.