Home / 1,908.91-2,634.30-1,162.87

Finding the Fourth Proportional to 1,908.91, 2,634.30 and 1,162.87

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Solution

The fourth proportional to 1,908.91, 2,634.30 and 1,162.87 is: 1,604.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908.91 : 2,634.30 = 1,162.87 : x
  2. Step 2: Convert to fraction form
    1,908.91/2,634.30 = 1,162.87/x
  3. Step 3: Cross multiply
    1,908.91x = 2,634.30 × 1,162.87
  4. Step 4: Simplify right side
    1,908.91x = 3,063,345.41
  5. Step 5: Solve for x
    x = 3,063,345.41/1,908.91
  6. Step 6: Final answer
    x = 1,604.76

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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.