Home / 3,586.10-5,371.79-2,121.69

Finding the Fourth Proportional to 3,586.10, 5,371.79 and 2,121.69

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Solution

The fourth proportional to 3,586.10, 5,371.79 and 2,121.69 is: 3,178.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,586.10 : 5,371.79 = 2,121.69 : x
  2. Step 2: Convert to fraction form
    3,586.10/5,371.79 = 2,121.69/x
  3. Step 3: Cross multiply
    3,586.10x = 5,371.79 × 2,121.69
  4. Step 4: Simplify right side
    3,586.10x = 11,397,273.13
  5. Step 5: Solve for x
    x = 11,397,273.13/3,586.10
  6. Step 6: Final answer
    x = 3,178.18

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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.