Home / 3,586.74-5,380.26-1,121.61

Finding the Fourth Proportional to 3,586.74, 5,380.26 and 1,121.61

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Solution

The fourth proportional to 3,586.74, 5,380.26 and 1,121.61 is: 1,682.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,586.74 : 5,380.26 = 1,121.61 : x
  2. Step 2: Convert to fraction form
    3,586.74/5,380.26 = 1,121.61/x
  3. Step 3: Cross multiply
    3,586.74x = 5,380.26 × 1,121.61
  4. Step 4: Simplify right side
    3,586.74x = 6,034,526.52
  5. Step 5: Solve for x
    x = 6,034,526.52/3,586.74
  6. Step 6: Final answer
    x = 1,682.45

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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.