Home / 5,676.80-8,515.16-3,361.28

Finding the Fourth Proportional to 5,676.80, 8,515.16 and 3,361.28

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Solution

The fourth proportional to 5,676.80, 8,515.16 and 3,361.28 is: 5,041.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,676.80 : 8,515.16 = 3,361.28 : x
  2. Step 2: Convert to fraction form
    5,676.80/8,515.16 = 3,361.28/x
  3. Step 3: Cross multiply
    5,676.80x = 8,515.16 × 3,361.28
  4. Step 4: Simplify right side
    5,676.80x = 28,621,837.00
  5. Step 5: Solve for x
    x = 28,621,837.00/5,676.80
  6. Step 6: Final answer
    x = 5,041.90

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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.