Home / 3,514.39-5,269.79-1,321.58

Finding the Fourth Proportional to 3,514.39, 5,269.79 and 1,321.58

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Solution

The fourth proportional to 3,514.39, 5,269.79 and 1,321.58 is: 1,981.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,514.39 : 5,269.79 = 1,321.58 : x
  2. Step 2: Convert to fraction form
    3,514.39/5,269.79 = 1,321.58/x
  3. Step 3: Cross multiply
    3,514.39x = 5,269.79 × 1,321.58
  4. Step 4: Simplify right side
    3,514.39x = 6,964,465.55
  5. Step 5: Solve for x
    x = 6,964,465.55/3,514.39
  6. Step 6: Final answer
    x = 1,981.70

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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.