Home / 2,774.70-4,161.89-1,998.32

Finding the Fourth Proportional to 2,774.70, 4,161.89 and 1,998.32

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Solution

The fourth proportional to 2,774.70, 4,161.89 and 1,998.32 is: 2,997.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,774.70 : 4,161.89 = 1,998.32 : x
  2. Step 2: Convert to fraction form
    2,774.70/4,161.89 = 1,998.32/x
  3. Step 3: Cross multiply
    2,774.70x = 4,161.89 × 1,998.32
  4. Step 4: Simplify right side
    2,774.70x = 8,316,772.21
  5. Step 5: Solve for x
    x = 8,316,772.21/2,774.70
  6. Step 6: Final answer
    x = 2,997.36

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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.