Home / 7,911.92-11,868.57-2,068.52

Finding the Fourth Proportional to 7,911.92, 11,868.57 and 2,068.52

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Solution

The fourth proportional to 7,911.92, 11,868.57 and 2,068.52 is: 3,102.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,911.92 : 11,868.57 = 2,068.52 : x
  2. Step 2: Convert to fraction form
    7,911.92/11,868.57 = 2,068.52/x
  3. Step 3: Cross multiply
    7,911.92x = 11,868.57 × 2,068.52
  4. Step 4: Simplify right side
    7,911.92x = 24,550,374.42
  5. Step 5: Solve for x
    x = 24,550,374.42/7,911.92
  6. Step 6: Final answer
    x = 3,102.96

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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.