Home / 2,682.49-4,024.41-1,221.30

Finding the Fourth Proportional to 2,682.49, 4,024.41 and 1,221.30

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Solution

The fourth proportional to 2,682.49, 4,024.41 and 1,221.30 is: 1,832.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,682.49 : 4,024.41 = 1,221.30 : x
  2. Step 2: Convert to fraction form
    2,682.49/4,024.41 = 1,221.30/x
  3. Step 3: Cross multiply
    2,682.49x = 4,024.41 × 1,221.30
  4. Step 4: Simplify right side
    2,682.49x = 4,915,011.93
  5. Step 5: Solve for x
    x = 4,915,011.93/2,682.49
  6. Step 6: Final answer
    x = 1,832.26

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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.