Home / 2,687.91-4,025.39-2,277.51

Finding the Fourth Proportional to 2,687.91, 4,025.39 and 2,277.51

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Solution

The fourth proportional to 2,687.91, 4,025.39 and 2,277.51 is: 3,410.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,687.91 : 4,025.39 = 2,277.51 : x
  2. Step 2: Convert to fraction form
    2,687.91/4,025.39 = 2,277.51/x
  3. Step 3: Cross multiply
    2,687.91x = 4,025.39 × 2,277.51
  4. Step 4: Simplify right side
    2,687.91x = 9,167,854.59
  5. Step 5: Solve for x
    x = 9,167,854.59/2,687.91
  6. Step 6: Final answer
    x = 3,410.77

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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.