Home / 3,513.60-5,268.69-1,261.35

Finding the Fourth Proportional to 3,513.60, 5,268.69 and 1,261.35

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Solution

The fourth proportional to 3,513.60, 5,268.69 and 1,261.35 is: 1,891.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,513.60 : 5,268.69 = 1,261.35 : x
  2. Step 2: Convert to fraction form
    3,513.60/5,268.69 = 1,261.35/x
  3. Step 3: Cross multiply
    3,513.60x = 5,268.69 × 1,261.35
  4. Step 4: Simplify right side
    3,513.60x = 6,645,662.13
  5. Step 5: Solve for x
    x = 6,645,662.13/3,513.60
  6. Step 6: Final answer
    x = 1,891.41

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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.