Home / 7,079.08-10,613.76-3,128.44

Finding the Fourth Proportional to 7,079.08, 10,613.76 and 3,128.44

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Solution

The fourth proportional to 7,079.08, 10,613.76 and 3,128.44 is: 4,690.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,079.08 : 10,613.76 = 3,128.44 : x
  2. Step 2: Convert to fraction form
    7,079.08/10,613.76 = 3,128.44/x
  3. Step 3: Cross multiply
    7,079.08x = 10,613.76 × 3,128.44
  4. Step 4: Simplify right side
    7,079.08x = 33,204,511.33
  5. Step 5: Solve for x
    x = 33,204,511.33/7,079.08
  6. Step 6: Final answer
    x = 4,690.51

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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.