Home / 3,778.68-5,673.30-2,690.04

Finding the Fourth Proportional to 3,778.68, 5,673.30 and 2,690.04

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Solution

The fourth proportional to 3,778.68, 5,673.30 and 2,690.04 is: 4,038.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778.68 : 5,673.30 = 2,690.04 : x
  2. Step 2: Convert to fraction form
    3,778.68/5,673.30 = 2,690.04/x
  3. Step 3: Cross multiply
    3,778.68x = 5,673.30 × 2,690.04
  4. Step 4: Simplify right side
    3,778.68x = 15,261,403.93
  5. Step 5: Solve for x
    x = 15,261,403.93/3,778.68
  6. Step 6: Final answer
    x = 4,038.82

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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.