Home / 3,904.46-5,388.18-2,136.06

Finding the Fourth Proportional to 3,904.46, 5,388.18 and 2,136.06

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Solution

The fourth proportional to 3,904.46, 5,388.18 and 2,136.06 is: 2,947.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,904.46 : 5,388.18 = 2,136.06 : x
  2. Step 2: Convert to fraction form
    3,904.46/5,388.18 = 2,136.06/x
  3. Step 3: Cross multiply
    3,904.46x = 5,388.18 × 2,136.06
  4. Step 4: Simplify right side
    3,904.46x = 11,509,475.77
  5. Step 5: Solve for x
    x = 11,509,475.77/3,904.46
  6. Step 6: Final answer
    x = 2,947.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.