Home / 3,627.45-5,439.56-1,029.78

Finding the Fourth Proportional to 3,627.45, 5,439.56 and 1,029.78

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Solution

The fourth proportional to 3,627.45, 5,439.56 and 1,029.78 is: 1,544.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,627.45 : 5,439.56 = 1,029.78 : x
  2. Step 2: Convert to fraction form
    3,627.45/5,439.56 = 1,029.78/x
  3. Step 3: Cross multiply
    3,627.45x = 5,439.56 × 1,029.78
  4. Step 4: Simplify right side
    3,627.45x = 5,601,544.95
  5. Step 5: Solve for x
    x = 5,601,544.95/3,627.45
  6. Step 6: Final answer
    x = 1,544.21

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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.