Home / 2,078.19-3,111.29-1,932.22

Finding the Fourth Proportional to 2,078.19, 3,111.29 and 1,932.22

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Solution

The fourth proportional to 2,078.19, 3,111.29 and 1,932.22 is: 2,892.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078.19 : 3,111.29 = 1,932.22 : x
  2. Step 2: Convert to fraction form
    2,078.19/3,111.29 = 1,932.22/x
  3. Step 3: Cross multiply
    2,078.19x = 3,111.29 × 1,932.22
  4. Step 4: Simplify right side
    2,078.19x = 6,011,698.24
  5. Step 5: Solve for x
    x = 6,011,698.24/2,078.19
  6. Step 6: Final answer
    x = 2,892.76

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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.