Home / 2,755.22-3,803.68-2,124.36

Finding the Fourth Proportional to 2,755.22, 3,803.68 and 2,124.36

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Solution

The fourth proportional to 2,755.22, 3,803.68 and 2,124.36 is: 2,932.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,755.22 : 3,803.68 = 2,124.36 : x
  2. Step 2: Convert to fraction form
    2,755.22/3,803.68 = 2,124.36/x
  3. Step 3: Cross multiply
    2,755.22x = 3,803.68 × 2,124.36
  4. Step 4: Simplify right side
    2,755.22x = 8,080,385.64
  5. Step 5: Solve for x
    x = 8,080,385.64/2,755.22
  6. Step 6: Final answer
    x = 2,932.76

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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.