Home / 3,643.80-5,467.88-1,452.20

Finding the Fourth Proportional to 3,643.80, 5,467.88 and 1,452.20

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Solution

The fourth proportional to 3,643.80, 5,467.88 and 1,452.20 is: 2,179.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,643.80 : 5,467.88 = 1,452.20 : x
  2. Step 2: Convert to fraction form
    3,643.80/5,467.88 = 1,452.20/x
  3. Step 3: Cross multiply
    3,643.80x = 5,467.88 × 1,452.20
  4. Step 4: Simplify right side
    3,643.80x = 7,940,455.34
  5. Step 5: Solve for x
    x = 7,940,455.34/3,643.80
  6. Step 6: Final answer
    x = 2,179.17

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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.