Home / 3,587.42-5,380.93-1,121.58

Finding the Fourth Proportional to 3,587.42, 5,380.93 and 1,121.58

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Solution

The fourth proportional to 3,587.42, 5,380.93 and 1,121.58 is: 1,682.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,587.42 : 5,380.93 = 1,121.58 : x
  2. Step 2: Convert to fraction form
    3,587.42/5,380.93 = 1,121.58/x
  3. Step 3: Cross multiply
    3,587.42x = 5,380.93 × 1,121.58
  4. Step 4: Simplify right side
    3,587.42x = 6,035,144.87
  5. Step 5: Solve for x
    x = 6,035,144.87/3,587.42
  6. Step 6: Final answer
    x = 1,682.31

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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.