Home / 8,920.94-13,382.13-2,680.52

Finding the Fourth Proportional to 8,920.94, 13,382.13 and 2,680.52

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Solution

The fourth proportional to 8,920.94, 13,382.13 and 2,680.52 is: 4,021.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,920.94 : 13,382.13 = 2,680.52 : x
  2. Step 2: Convert to fraction form
    8,920.94/13,382.13 = 2,680.52/x
  3. Step 3: Cross multiply
    8,920.94x = 13,382.13 × 2,680.52
  4. Step 4: Simplify right side
    8,920.94x = 35,871,067.11
  5. Step 5: Solve for x
    x = 35,871,067.11/8,920.94
  6. Step 6: Final answer
    x = 4,021.00

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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.