Home / 5,327.43-7,991.10-1,378.35

Finding the Fourth Proportional to 5,327.43, 7,991.10 and 1,378.35

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Solution

The fourth proportional to 5,327.43, 7,991.10 and 1,378.35 is: 2,067.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,327.43 : 7,991.10 = 1,378.35 : x
  2. Step 2: Convert to fraction form
    5,327.43/7,991.10 = 1,378.35/x
  3. Step 3: Cross multiply
    5,327.43x = 7,991.10 × 1,378.35
  4. Step 4: Simplify right side
    5,327.43x = 11,014,532.69
  5. Step 5: Solve for x
    x = 11,014,532.69/5,327.43
  6. Step 6: Final answer
    x = 2,067.51

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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.