Home / 1,331.19-1,997.73-1,074.30

Finding the Fourth Proportional to 1,331.19, 1,997.73 and 1,074.30

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Solution

The fourth proportional to 1,331.19, 1,997.73 and 1,074.30 is: 1,612.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331.19 : 1,997.73 = 1,074.30 : x
  2. Step 2: Convert to fraction form
    1,331.19/1,997.73 = 1,074.30/x
  3. Step 3: Cross multiply
    1,331.19x = 1,997.73 × 1,074.30
  4. Step 4: Simplify right side
    1,331.19x = 2,146,161.34
  5. Step 5: Solve for x
    x = 2,146,161.34/1,331.19
  6. Step 6: Final answer
    x = 1,612.21

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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.