Home / 3,815.66-5,268.20-2,558.60

Finding the Fourth Proportional to 3,815.66, 5,268.20 and 2,558.60

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Solution

The fourth proportional to 3,815.66, 5,268.20 and 2,558.60 is: 3,532.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.66 : 5,268.20 = 2,558.60 : x
  2. Step 2: Convert to fraction form
    3,815.66/5,268.20 = 2,558.60/x
  3. Step 3: Cross multiply
    3,815.66x = 5,268.20 × 2,558.60
  4. Step 4: Simplify right side
    3,815.66x = 13,479,177.39
  5. Step 5: Solve for x
    x = 13,479,177.39/3,815.66
  6. Step 6: Final answer
    x = 3,532.59

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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.