Home / 5,249.77-7,874.60-2,129.03

Finding the Fourth Proportional to 5,249.77, 7,874.60 and 2,129.03

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Solution

The fourth proportional to 5,249.77, 7,874.60 and 2,129.03 is: 3,193.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,249.77 : 7,874.60 = 2,129.03 : x
  2. Step 2: Convert to fraction form
    5,249.77/7,874.60 = 2,129.03/x
  3. Step 3: Cross multiply
    5,249.77x = 7,874.60 × 2,129.03
  4. Step 4: Simplify right side
    5,249.77x = 16,765,239.15
  5. Step 5: Solve for x
    x = 16,765,239.15/5,249.77
  6. Step 6: Final answer
    x = 3,193.52

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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.