Home / 2,522.88-3,782.62-1,289.28

Finding the Fourth Proportional to 2,522.88, 3,782.62 and 1,289.28

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Solution

The fourth proportional to 2,522.88, 3,782.62 and 1,289.28 is: 1,933.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,522.88 : 3,782.62 = 1,289.28 : x
  2. Step 2: Convert to fraction form
    2,522.88/3,782.62 = 1,289.28/x
  3. Step 3: Cross multiply
    2,522.88x = 3,782.62 × 1,289.28
  4. Step 4: Simplify right side
    2,522.88x = 4,876,856.31
  5. Step 5: Solve for x
    x = 4,876,856.31/2,522.88
  6. Step 6: Final answer
    x = 1,933.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.