Home / 3,613.44-5,388.60-3,215.24

Finding the Fourth Proportional to 3,613.44, 5,388.60 and 3,215.24

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Solution

The fourth proportional to 3,613.44, 5,388.60 and 3,215.24 is: 4,794.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,613.44 : 5,388.60 = 3,215.24 : x
  2. Step 2: Convert to fraction form
    3,613.44/5,388.60 = 3,215.24/x
  3. Step 3: Cross multiply
    3,613.44x = 5,388.60 × 3,215.24
  4. Step 4: Simplify right side
    3,613.44x = 17,325,642.26
  5. Step 5: Solve for x
    x = 17,325,642.26/3,613.44
  6. Step 6: Final answer
    x = 4,794.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.