Home / 3,840.76-5,296.62-2,515.60

Finding the Fourth Proportional to 3,840.76, 5,296.62 and 2,515.60

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Solution

The fourth proportional to 3,840.76, 5,296.62 and 2,515.60 is: 3,469.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840.76 : 5,296.62 = 2,515.60 : x
  2. Step 2: Convert to fraction form
    3,840.76/5,296.62 = 2,515.60/x
  3. Step 3: Cross multiply
    3,840.76x = 5,296.62 × 2,515.60
  4. Step 4: Simplify right side
    3,840.76x = 13,324,177.27
  5. Step 5: Solve for x
    x = 13,324,177.27/3,840.76
  6. Step 6: Final answer
    x = 3,469.15

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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.