Home / 5,107.86-7,052.11-3,408.79

Finding the Fourth Proportional to 5,107.86, 7,052.11 and 3,408.79

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Solution

The fourth proportional to 5,107.86, 7,052.11 and 3,408.79 is: 4,706.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,107.86 : 7,052.11 = 3,408.79 : x
  2. Step 2: Convert to fraction form
    5,107.86/7,052.11 = 3,408.79/x
  3. Step 3: Cross multiply
    5,107.86x = 7,052.11 × 3,408.79
  4. Step 4: Simplify right side
    5,107.86x = 24,039,135.89
  5. Step 5: Solve for x
    x = 24,039,135.89/5,107.86
  6. Step 6: Final answer
    x = 4,706.30

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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.