Home / 5,138.82-7,707.62-1,441.34

Finding the Fourth Proportional to 5,138.82, 7,707.62 and 1,441.34

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Solution

The fourth proportional to 5,138.82, 7,707.62 and 1,441.34 is: 2,161.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,138.82 : 7,707.62 = 1,441.34 : x
  2. Step 2: Convert to fraction form
    5,138.82/7,707.62 = 1,441.34/x
  3. Step 3: Cross multiply
    5,138.82x = 7,707.62 × 1,441.34
  4. Step 4: Simplify right side
    5,138.82x = 11,109,301.01
  5. Step 5: Solve for x
    x = 11,109,301.01/5,138.82
  6. Step 6: Final answer
    x = 2,161.84

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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.