Home / 3,629.78-5,442.90-1,521.01

Finding the Fourth Proportional to 3,629.78, 5,442.90 and 1,521.01

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Solution

The fourth proportional to 3,629.78, 5,442.90 and 1,521.01 is: 2,280.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,629.78 : 5,442.90 = 1,521.01 : x
  2. Step 2: Convert to fraction form
    3,629.78/5,442.90 = 1,521.01/x
  3. Step 3: Cross multiply
    3,629.78x = 5,442.90 × 1,521.01
  4. Step 4: Simplify right side
    3,629.78x = 8,278,706.43
  5. Step 5: Solve for x
    x = 8,278,706.43/3,629.78
  6. Step 6: Final answer
    x = 2,280.77

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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.