Home / 4,137.40-6,206.10-3,719.80

Finding the Fourth Proportional to 4,137.40, 6,206.10 and 3,719.80

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Solution

The fourth proportional to 4,137.40, 6,206.10 and 3,719.80 is: 5,579.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,137.40 : 6,206.10 = 3,719.80 : x
  2. Step 2: Convert to fraction form
    4,137.40/6,206.10 = 3,719.80/x
  3. Step 3: Cross multiply
    4,137.40x = 6,206.10 × 3,719.80
  4. Step 4: Simplify right side
    4,137.40x = 23,085,450.78
  5. Step 5: Solve for x
    x = 23,085,450.78/4,137.40
  6. Step 6: Final answer
    x = 5,579.70

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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.