Home / 3,587.76-5,380.26-1,396.20

Finding the Fourth Proportional to 3,587.76, 5,380.26 and 1,396.20

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Solution

The fourth proportional to 3,587.76, 5,380.26 and 1,396.20 is: 2,093.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,587.76 : 5,380.26 = 1,396.20 : x
  2. Step 2: Convert to fraction form
    3,587.76/5,380.26 = 1,396.20/x
  3. Step 3: Cross multiply
    3,587.76x = 5,380.26 × 1,396.20
  4. Step 4: Simplify right side
    3,587.76x = 7,511,919.01
  5. Step 5: Solve for x
    x = 7,511,919.01/3,587.76
  6. Step 6: Final answer
    x = 2,093.76

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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.