Home / 3,664.20-5,056.10-2,172.18

Finding the Fourth Proportional to 3,664.20, 5,056.10 and 2,172.18

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Solution

The fourth proportional to 3,664.20, 5,056.10 and 2,172.18 is: 2,997.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,664.20 : 5,056.10 = 2,172.18 : x
  2. Step 2: Convert to fraction form
    3,664.20/5,056.10 = 2,172.18/x
  3. Step 3: Cross multiply
    3,664.20x = 5,056.10 × 2,172.18
  4. Step 4: Simplify right side
    3,664.20x = 10,982,759.30
  5. Step 5: Solve for x
    x = 10,982,759.30/3,664.20
  6. Step 6: Final answer
    x = 2,997.31

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1.5x scale

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.