Home / 3,228.86-4,448.72-2,695.78

Finding the Fourth Proportional to 3,228.86, 4,448.72 and 2,695.78

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Solution

The fourth proportional to 3,228.86, 4,448.72 and 2,695.78 is: 3,714.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,228.86 : 4,448.72 = 2,695.78 : x
  2. Step 2: Convert to fraction form
    3,228.86/4,448.72 = 2,695.78/x
  3. Step 3: Cross multiply
    3,228.86x = 4,448.72 × 2,695.78
  4. Step 4: Simplify right side
    3,228.86x = 11,992,782.70
  5. Step 5: Solve for x
    x = 11,992,782.70/3,228.86
  6. Step 6: Final answer
    x = 3,714.24

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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.