Home / 3,368.10-5,049.99-1,419.78

Finding the Fourth Proportional to 3,368.10, 5,049.99 and 1,419.78

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Solution

The fourth proportional to 3,368.10, 5,049.99 and 1,419.78 is: 2,128.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,368.10 : 5,049.99 = 1,419.78 : x
  2. Step 2: Convert to fraction form
    3,368.10/5,049.99 = 1,419.78/x
  3. Step 3: Cross multiply
    3,368.10x = 5,049.99 × 1,419.78
  4. Step 4: Simplify right side
    3,368.10x = 7,169,874.80
  5. Step 5: Solve for x
    x = 7,169,874.80/3,368.10
  6. Step 6: Final answer
    x = 2,128.76

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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.