Home / 4,079.80-5,613.42-3,820.60

Finding the Fourth Proportional to 4,079.80, 5,613.42 and 3,820.60

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Solution

The fourth proportional to 4,079.80, 5,613.42 and 3,820.60 is: 5,256.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,079.80 : 5,613.42 = 3,820.60 : x
  2. Step 2: Convert to fraction form
    4,079.80/5,613.42 = 3,820.60/x
  3. Step 3: Cross multiply
    4,079.80x = 5,613.42 × 3,820.60
  4. Step 4: Simplify right side
    4,079.80x = 21,446,632.45
  5. Step 5: Solve for x
    x = 21,446,632.45/4,079.80
  6. Step 6: Final answer
    x = 5,256.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.