Home / 7,275.91-10,920.35-3,382.51

Finding the Fourth Proportional to 7,275.91, 10,920.35 and 3,382.51

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Solution

The fourth proportional to 7,275.91, 10,920.35 and 3,382.51 is: 5,076.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,275.91 : 10,920.35 = 3,382.51 : x
  2. Step 2: Convert to fraction form
    7,275.91/10,920.35 = 3,382.51/x
  3. Step 3: Cross multiply
    7,275.91x = 10,920.35 × 3,382.51
  4. Step 4: Simplify right side
    7,275.91x = 36,938,193.08
  5. Step 5: Solve for x
    x = 36,938,193.08/7,275.91
  6. Step 6: Final answer
    x = 5,076.78

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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.