Home / 3,691.39-5,513.56-3,339.46

Finding the Fourth Proportional to 3,691.39, 5,513.56 and 3,339.46

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Solution

The fourth proportional to 3,691.39, 5,513.56 and 3,339.46 is: 4,987.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,691.39 : 5,513.56 = 3,339.46 : x
  2. Step 2: Convert to fraction form
    3,691.39/5,513.56 = 3,339.46/x
  3. Step 3: Cross multiply
    3,691.39x = 5,513.56 × 3,339.46
  4. Step 4: Simplify right side
    3,691.39x = 18,412,268.81
  5. Step 5: Solve for x
    x = 18,412,268.81/3,691.39
  6. Step 6: Final answer
    x = 4,987.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.