Home / 7,934.18-11,901.87-2,669.21

Finding the Fourth Proportional to 7,934.18, 11,901.87 and 2,669.21

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Solution

The fourth proportional to 7,934.18, 11,901.87 and 2,669.21 is: 4,004.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,934.18 : 11,901.87 = 2,669.21 : x
  2. Step 2: Convert to fraction form
    7,934.18/11,901.87 = 2,669.21/x
  3. Step 3: Cross multiply
    7,934.18x = 11,901.87 × 2,669.21
  4. Step 4: Simplify right side
    7,934.18x = 31,768,517.57
  5. Step 5: Solve for x
    x = 31,768,517.57/7,934.18
  6. Step 6: Final answer
    x = 4,004.01

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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.