Home / 3,612.45-5,418.44-1,147.42

Finding the Fourth Proportional to 3,612.45, 5,418.44 and 1,147.42

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Solution

The fourth proportional to 3,612.45, 5,418.44 and 1,147.42 is: 1,721.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,612.45 : 5,418.44 = 1,147.42 : x
  2. Step 2: Convert to fraction form
    3,612.45/5,418.44 = 1,147.42/x
  3. Step 3: Cross multiply
    3,612.45x = 5,418.44 × 1,147.42
  4. Step 4: Simplify right side
    3,612.45x = 6,217,226.42
  5. Step 5: Solve for x
    x = 6,217,226.42/3,612.45
  6. Step 6: Final answer
    x = 1,721.06

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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.