Home / 2,578.32-3,881.34-2,202.48

Finding the Fourth Proportional to 2,578.32, 3,881.34 and 2,202.48

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Solution

The fourth proportional to 2,578.32, 3,881.34 and 2,202.48 is: 3,315.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578.32 : 3,881.34 = 2,202.48 : x
  2. Step 2: Convert to fraction form
    2,578.32/3,881.34 = 2,202.48/x
  3. Step 3: Cross multiply
    2,578.32x = 3,881.34 × 2,202.48
  4. Step 4: Simplify right side
    2,578.32x = 8,548,573.72
  5. Step 5: Solve for x
    x = 8,548,573.72/2,578.32
  6. Step 6: Final answer
    x = 3,315.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.