Home / 4,381.31-6,568.41-2,991.15

Finding the Fourth Proportional to 4,381.31, 6,568.41 and 2,991.15

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Solution

The fourth proportional to 4,381.31, 6,568.41 and 2,991.15 is: 4,484.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,381.31 : 6,568.41 = 2,991.15 : x
  2. Step 2: Convert to fraction form
    4,381.31/6,568.41 = 2,991.15/x
  3. Step 3: Cross multiply
    4,381.31x = 6,568.41 × 2,991.15
  4. Step 4: Simplify right side
    4,381.31x = 19,647,074.21
  5. Step 5: Solve for x
    x = 19,647,074.21/4,381.31
  6. Step 6: Final answer
    x = 4,484.30

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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.