Home / 5,466.78-8,199.24-2,178.99

Finding the Fourth Proportional to 5,466.78, 8,199.24 and 2,178.99

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Solution

The fourth proportional to 5,466.78, 8,199.24 and 2,178.99 is: 3,268.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,466.78 : 8,199.24 = 2,178.99 : x
  2. Step 2: Convert to fraction form
    5,466.78/8,199.24 = 2,178.99/x
  3. Step 3: Cross multiply
    5,466.78x = 8,199.24 × 2,178.99
  4. Step 4: Simplify right side
    5,466.78x = 17,866,061.97
  5. Step 5: Solve for x
    x = 17,866,061.97/5,466.78
  6. Step 6: Final answer
    x = 3,268.11

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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.