Home / 7,279.38-10,920.83-2,085.26

Finding the Fourth Proportional to 7,279.38, 10,920.83 and 2,085.26

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Solution

The fourth proportional to 7,279.38, 10,920.83 and 2,085.26 is: 3,128.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,279.38 : 10,920.83 = 2,085.26 : x
  2. Step 2: Convert to fraction form
    7,279.38/10,920.83 = 2,085.26/x
  3. Step 3: Cross multiply
    7,279.38x = 10,920.83 × 2,085.26
  4. Step 4: Simplify right side
    7,279.38x = 22,772,704.94
  5. Step 5: Solve for x
    x = 22,772,704.94/7,279.38
  6. Step 6: Final answer
    x = 3,128.39

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1.5x scale

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.