Home / 3,613.68-5,419.62-1,392.06

Finding the Fourth Proportional to 3,613.68, 5,419.62 and 1,392.06

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Solution

The fourth proportional to 3,613.68, 5,419.62 and 1,392.06 is: 2,087.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,613.68 : 5,419.62 = 1,392.06 : x
  2. Step 2: Convert to fraction form
    3,613.68/5,419.62 = 1,392.06/x
  3. Step 3: Cross multiply
    3,613.68x = 5,419.62 × 1,392.06
  4. Step 4: Simplify right side
    3,613.68x = 7,544,436.22
  5. Step 5: Solve for x
    x = 7,544,436.22/3,613.68
  6. Step 6: Final answer
    x = 2,087.74

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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.