Home / 3,778.05-5,210.13-3,149.35

Finding the Fourth Proportional to 3,778.05, 5,210.13 and 3,149.35

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Solution

The fourth proportional to 3,778.05, 5,210.13 and 3,149.35 is: 4,343.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778.05 : 5,210.13 = 3,149.35 : x
  2. Step 2: Convert to fraction form
    3,778.05/5,210.13 = 3,149.35/x
  3. Step 3: Cross multiply
    3,778.05x = 5,210.13 × 3,149.35
  4. Step 4: Simplify right side
    3,778.05x = 16,408,522.92
  5. Step 5: Solve for x
    x = 16,408,522.92/3,778.05
  6. Step 6: Final answer
    x = 4,343.12

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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.