Home / 7,279.44-10,919.22-3,386.64

Finding the Fourth Proportional to 7,279.44, 10,919.22 and 3,386.64

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Solution

The fourth proportional to 7,279.44, 10,919.22 and 3,386.64 is: 5,079.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,279.44 : 10,919.22 = 3,386.64 : x
  2. Step 2: Convert to fraction form
    7,279.44/10,919.22 = 3,386.64/x
  3. Step 3: Cross multiply
    7,279.44x = 10,919.22 × 3,386.64
  4. Step 4: Simplify right side
    7,279.44x = 36,979,467.22
  5. Step 5: Solve for x
    x = 36,979,467.22/7,279.44
  6. Step 6: Final answer
    x = 5,079.99

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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.