Home / 3,612.28-5,419.79-1,664.03

Finding the Fourth Proportional to 3,612.28, 5,419.79 and 1,664.03

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Solution

The fourth proportional to 3,612.28, 5,419.79 and 1,664.03 is: 2,496.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,612.28 : 5,419.79 = 1,664.03 : x
  2. Step 2: Convert to fraction form
    3,612.28/5,419.79 = 1,664.03/x
  3. Step 3: Cross multiply
    3,612.28x = 5,419.79 × 1,664.03
  4. Step 4: Simplify right side
    3,612.28x = 9,018,693.15
  5. Step 5: Solve for x
    x = 9,018,693.15/3,612.28
  6. Step 6: Final answer
    x = 2,496.68

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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.