Home / 7,426.72-11,135.22-2,981.44

Finding the Fourth Proportional to 7,426.72, 11,135.22 and 2,981.44

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Solution

The fourth proportional to 7,426.72, 11,135.22 and 2,981.44 is: 4,470.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,426.72 : 11,135.22 = 2,981.44 : x
  2. Step 2: Convert to fraction form
    7,426.72/11,135.22 = 2,981.44/x
  3. Step 3: Cross multiply
    7,426.72x = 11,135.22 × 2,981.44
  4. Step 4: Simplify right side
    7,426.72x = 33,198,990.32
  5. Step 5: Solve for x
    x = 33,198,990.32/7,426.72
  6. Step 6: Final answer
    x = 4,470.21

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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.