Home / 5,256.41-7,879.29-3,408.69

Finding the Fourth Proportional to 5,256.41, 7,879.29 and 3,408.69

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Solution

The fourth proportional to 5,256.41, 7,879.29 and 3,408.69 is: 5,109.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,256.41 : 7,879.29 = 3,408.69 : x
  2. Step 2: Convert to fraction form
    5,256.41/7,879.29 = 3,408.69/x
  3. Step 3: Cross multiply
    5,256.41x = 7,879.29 × 3,408.69
  4. Step 4: Simplify right side
    5,256.41x = 26,858,073.79
  5. Step 5: Solve for x
    x = 26,858,073.79/5,256.41
  6. Step 6: Final answer
    x = 5,109.59

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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.