Home / 2,728.02-3,761.91-1,665.90

Finding the Fourth Proportional to 2,728.02, 3,761.91 and 1,665.90

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Solution

The fourth proportional to 2,728.02, 3,761.91 and 1,665.90 is: 2,297.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,728.02 : 3,761.91 = 1,665.90 : x
  2. Step 2: Convert to fraction form
    2,728.02/3,761.91 = 1,665.90/x
  3. Step 3: Cross multiply
    2,728.02x = 3,761.91 × 1,665.90
  4. Step 4: Simplify right side
    2,728.02x = 6,266,965.87
  5. Step 5: Solve for x
    x = 6,266,965.87/2,728.02
  6. Step 6: Final answer
    x = 2,297.26

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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.