Home / 4,290.72-5,919.94-2,611.20

Finding the Fourth Proportional to 4,290.72, 5,919.94 and 2,611.20

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Solution

The fourth proportional to 4,290.72, 5,919.94 and 2,611.20 is: 3,602.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,290.72 : 5,919.94 = 2,611.20 : x
  2. Step 2: Convert to fraction form
    4,290.72/5,919.94 = 2,611.20/x
  3. Step 3: Cross multiply
    4,290.72x = 5,919.94 × 2,611.20
  4. Step 4: Simplify right side
    4,290.72x = 15,458,147.33
  5. Step 5: Solve for x
    x = 15,458,147.33/4,290.72
  6. Step 6: Final answer
    x = 3,602.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.