Home / 3,643.78-5,467.90-1,452.20

Finding the Fourth Proportional to 3,643.78, 5,467.90 and 1,452.20

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Solution

The fourth proportional to 3,643.78, 5,467.90 and 1,452.20 is: 2,179.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,643.78 : 5,467.90 = 1,452.20 : x
  2. Step 2: Convert to fraction form
    3,643.78/5,467.90 = 1,452.20/x
  3. Step 3: Cross multiply
    3,643.78x = 5,467.90 × 1,452.20
  4. Step 4: Simplify right side
    3,643.78x = 7,940,484.38
  5. Step 5: Solve for x
    x = 7,940,484.38/3,643.78
  6. Step 6: Final answer
    x = 2,179.19

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1.5x scale

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.