Home / 2,728.58-3,765.47-1,549.66

Finding the Fourth Proportional to 2,728.58, 3,765.47 and 1,549.66

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Solution

The fourth proportional to 2,728.58, 3,765.47 and 1,549.66 is: 2,138.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,728.58 : 3,765.47 = 1,549.66 : x
  2. Step 2: Convert to fraction form
    2,728.58/3,765.47 = 1,549.66/x
  3. Step 3: Cross multiply
    2,728.58x = 3,765.47 × 1,549.66
  4. Step 4: Simplify right side
    2,728.58x = 5,835,181.08
  5. Step 5: Solve for x
    x = 5,835,181.08/2,728.58
  6. Step 6: Final answer
    x = 2,138.54

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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.