Home / 5,249.45-7,873.57-2,130.85

Finding the Fourth Proportional to 5,249.45, 7,873.57 and 2,130.85

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Solution

The fourth proportional to 5,249.45, 7,873.57 and 2,130.85 is: 3,196.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,249.45 : 7,873.57 = 2,130.85 : x
  2. Step 2: Convert to fraction form
    5,249.45/7,873.57 = 2,130.85/x
  3. Step 3: Cross multiply
    5,249.45x = 7,873.57 × 2,130.85
  4. Step 4: Simplify right side
    5,249.45x = 16,777,371.62
  5. Step 5: Solve for x
    x = 16,777,371.62/5,249.45
  6. Step 6: Final answer
    x = 3,196.02

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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.