Home / 3,850.88-5,778.16-2,389.60

Finding the Fourth Proportional to 3,850.88, 5,778.16 and 2,389.60

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Solution

The fourth proportional to 3,850.88, 5,778.16 and 2,389.60 is: 3,585.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,850.88 : 5,778.16 = 2,389.60 : x
  2. Step 2: Convert to fraction form
    3,850.88/5,778.16 = 2,389.60/x
  3. Step 3: Cross multiply
    3,850.88x = 5,778.16 × 2,389.60
  4. Step 4: Simplify right side
    3,850.88x = 13,807,491.14
  5. Step 5: Solve for x
    x = 13,807,491.14/3,850.88
  6. Step 6: Final answer
    x = 3,585.54

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1.5x scale

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.