Home / 2,578.73-3,556.46-1,739.30

Finding the Fourth Proportional to 2,578.73, 3,556.46 and 1,739.30

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Solution

The fourth proportional to 2,578.73, 3,556.46 and 1,739.30 is: 2,398.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578.73 : 3,556.46 = 1,739.30 : x
  2. Step 2: Convert to fraction form
    2,578.73/3,556.46 = 1,739.30/x
  3. Step 3: Cross multiply
    2,578.73x = 3,556.46 × 1,739.30
  4. Step 4: Simplify right side
    2,578.73x = 6,185,742.18
  5. Step 5: Solve for x
    x = 6,185,742.18/2,578.73
  6. Step 6: Final answer
    x = 2,398.76

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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.