Home / 3,587.03-5,380.27-1,121.77

Finding the Fourth Proportional to 3,587.03, 5,380.27 and 1,121.77

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Solution

The fourth proportional to 3,587.03, 5,380.27 and 1,121.77 is: 1,682.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,587.03 : 5,380.27 = 1,121.77 : x
  2. Step 2: Convert to fraction form
    3,587.03/5,380.27 = 1,121.77/x
  3. Step 3: Cross multiply
    3,587.03x = 5,380.27 × 1,121.77
  4. Step 4: Simplify right side
    3,587.03x = 6,035,405.44
  5. Step 5: Solve for x
    x = 6,035,405.44/3,587.03
  6. Step 6: Final answer
    x = 1,682.56

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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.