Home / 3,586.89-5,380.71-1,121.34

Finding the Fourth Proportional to 3,586.89, 5,380.71 and 1,121.34

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Solution

The fourth proportional to 3,586.89, 5,380.71 and 1,121.34 is: 1,682.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,586.89 : 5,380.71 = 1,121.34 : x
  2. Step 2: Convert to fraction form
    3,586.89/5,380.71 = 1,121.34/x
  3. Step 3: Cross multiply
    3,586.89x = 5,380.71 × 1,121.34
  4. Step 4: Simplify right side
    3,586.89x = 6,033,605.35
  5. Step 5: Solve for x
    x = 6,033,605.35/3,586.89
  6. Step 6: Final answer
    x = 1,682.13

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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.