Home / 3,484.28-5,199.39-3,115

Finding the Fourth Proportional to 3,484.28, 5,199.39 and 3,115

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Solution

The fourth proportional to 3,484.28, 5,199.39 and 3,115 is: 4,648.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,484.28 : 5,199.39 = 3,115 : x
  2. Step 2: Convert to fraction form
    3,484.28/5,199.39 = 3,115/x
  3. Step 3: Cross multiply
    3,484.28x = 5,199.39 × 3,115
  4. Step 4: Simplify right side
    3,484.28x = 16,196,099.85
  5. Step 5: Solve for x
    x = 16,196,099.85/3,484.28
  6. Step 6: Final answer
    x = 4,648.33

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.