Home / 8,755.29-13,131.90-2,180.95

Finding the Fourth Proportional to 8,755.29, 13,131.90 and 2,180.95

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Solution

The fourth proportional to 8,755.29, 13,131.90 and 2,180.95 is: 3,271.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,755.29 : 13,131.90 = 2,180.95 : x
  2. Step 2: Convert to fraction form
    8,755.29/13,131.90 = 2,180.95/x
  3. Step 3: Cross multiply
    8,755.29x = 13,131.90 × 2,180.95
  4. Step 4: Simplify right side
    8,755.29x = 28,640,017.31
  5. Step 5: Solve for x
    x = 28,640,017.31/8,755.29
  6. Step 6: Final answer
    x = 3,271.17

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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.