Home / 3,922.09-5,408.68-2,648.77

Finding the Fourth Proportional to 3,922.09, 5,408.68 and 2,648.77

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Solution

The fourth proportional to 3,922.09, 5,408.68 and 2,648.77 is: 3,652.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,922.09 : 5,408.68 = 2,648.77 : x
  2. Step 2: Convert to fraction form
    3,922.09/5,408.68 = 2,648.77/x
  3. Step 3: Cross multiply
    3,922.09x = 5,408.68 × 2,648.77
  4. Step 4: Simplify right side
    3,922.09x = 14,326,349.32
  5. Step 5: Solve for x
    x = 14,326,349.32/3,922.09
  6. Step 6: Final answer
    x = 3,652.73

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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.