Home / 2,724-4,086.20-1,998.16

Finding the Fourth Proportional to 2,724, 4,086.20 and 1,998.16

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Solution

The fourth proportional to 2,724, 4,086.20 and 1,998.16 is: 2,997.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,724 : 4,086.20 = 1,998.16 : x
  2. Step 2: Convert to fraction form
    2,724/4,086.20 = 1,998.16/x
  3. Step 3: Cross multiply
    2,724x = 4,086.20 × 1,998.16
  4. Step 4: Simplify right side
    2,724x = 8,164,881.39
  5. Step 5: Solve for x
    x = 8,164,881.39/2,724
  6. Step 6: Final answer
    x = 2,997.39

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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.