Home / 5,611.87-7,745.39-3,514.78

Finding the Fourth Proportional to 5,611.87, 7,745.39 and 3,514.78

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Solution

The fourth proportional to 5,611.87, 7,745.39 and 3,514.78 is: 4,851.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,611.87 : 7,745.39 = 3,514.78 : x
  2. Step 2: Convert to fraction form
    5,611.87/7,745.39 = 3,514.78/x
  3. Step 3: Cross multiply
    5,611.87x = 7,745.39 × 3,514.78
  4. Step 4: Simplify right side
    5,611.87x = 27,223,341.86
  5. Step 5: Solve for x
    x = 27,223,341.86/5,611.87
  6. Step 6: Final answer
    x = 4,851.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.