Home / 3,636.72-5,445.36-2,908.80

Finding the Fourth Proportional to 3,636.72, 5,445.36 and 2,908.80

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Solution

The fourth proportional to 3,636.72, 5,445.36 and 2,908.80 is: 4,355.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,636.72 : 5,445.36 = 2,908.80 : x
  2. Step 2: Convert to fraction form
    3,636.72/5,445.36 = 2,908.80/x
  3. Step 3: Cross multiply
    3,636.72x = 5,445.36 × 2,908.80
  4. Step 4: Simplify right side
    3,636.72x = 15,839,463.17
  5. Step 5: Solve for x
    x = 15,839,463.17/3,636.72
  6. Step 6: Final answer
    x = 4,355.43

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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.