Home / 3,499.39-5,249.19-1,307.71

Finding the Fourth Proportional to 3,499.39, 5,249.19 and 1,307.71

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Solution

The fourth proportional to 3,499.39, 5,249.19 and 1,307.71 is: 1,961.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,499.39 : 5,249.19 = 1,307.71 : x
  2. Step 2: Convert to fraction form
    3,499.39/5,249.19 = 1,307.71/x
  3. Step 3: Cross multiply
    3,499.39x = 5,249.19 × 1,307.71
  4. Step 4: Simplify right side
    3,499.39x = 6,864,418.25
  5. Step 5: Solve for x
    x = 6,864,418.25/3,499.39
  6. Step 6: Final answer
    x = 1,961.60

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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.