Home / 3,778.36-5,214.15-2,099.65

Finding the Fourth Proportional to 3,778.36, 5,214.15 and 2,099.65

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Solution

The fourth proportional to 3,778.36, 5,214.15 and 2,099.65 is: 2,897.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778.36 : 5,214.15 = 2,099.65 : x
  2. Step 2: Convert to fraction form
    3,778.36/5,214.15 = 2,099.65/x
  3. Step 3: Cross multiply
    3,778.36x = 5,214.15 × 2,099.65
  4. Step 4: Simplify right side
    3,778.36x = 10,947,890.05
  5. Step 5: Solve for x
    x = 10,947,890.05/3,778.36
  6. Step 6: Final answer
    x = 2,897.52

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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.