Home / 5,138.44-7,707.18-2,216.20

Finding the Fourth Proportional to 5,138.44, 7,707.18 and 2,216.20

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Solution

The fourth proportional to 5,138.44, 7,707.18 and 2,216.20 is: 3,324.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,138.44 : 7,707.18 = 2,216.20 : x
  2. Step 2: Convert to fraction form
    5,138.44/7,707.18 = 2,216.20/x
  3. Step 3: Cross multiply
    5,138.44x = 7,707.18 × 2,216.20
  4. Step 4: Simplify right side
    5,138.44x = 17,080,652.32
  5. Step 5: Solve for x
    x = 17,080,652.32/5,138.44
  6. Step 6: Final answer
    x = 3,324.09

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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.