Home / 3,611.57-5,418.66-1,419.08

Finding the Fourth Proportional to 3,611.57, 5,418.66 and 1,419.08

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Solution

The fourth proportional to 3,611.57, 5,418.66 and 1,419.08 is: 2,129.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.57 : 5,418.66 = 1,419.08 : x
  2. Step 2: Convert to fraction form
    3,611.57/5,418.66 = 1,419.08/x
  3. Step 3: Cross multiply
    3,611.57x = 5,418.66 × 1,419.08
  4. Step 4: Simplify right side
    3,611.57x = 7,689,512.03
  5. Step 5: Solve for x
    x = 7,689,512.03/3,611.57
  6. Step 6: Final answer
    x = 2,129.13

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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.