Home / 2,578.31-3,556.46-2,263.32

Finding the Fourth Proportional to 2,578.31, 3,556.46 and 2,263.32

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Solution

The fourth proportional to 2,578.31, 3,556.46 and 2,263.32 is: 3,121.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578.31 : 3,556.46 = 2,263.32 : x
  2. Step 2: Convert to fraction form
    2,578.31/3,556.46 = 2,263.32/x
  3. Step 3: Cross multiply
    2,578.31x = 3,556.46 × 2,263.32
  4. Step 4: Simplify right side
    2,578.31x = 8,049,395.73
  5. Step 5: Solve for x
    x = 8,049,395.73/2,578.31
  6. Step 6: Final answer
    x = 3,121.97

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1.5x scale

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.