Home / 2,113.91-2,917.17-1,169.72

Finding the Fourth Proportional to 2,113.91, 2,917.17 and 1,169.72

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Solution

The fourth proportional to 2,113.91, 2,917.17 and 1,169.72 is: 1,614.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113.91 : 2,917.17 = 1,169.72 : x
  2. Step 2: Convert to fraction form
    2,113.91/2,917.17 = 1,169.72/x
  3. Step 3: Cross multiply
    2,113.91x = 2,917.17 × 1,169.72
  4. Step 4: Simplify right side
    2,113.91x = 3,412,257.51
  5. Step 5: Solve for x
    x = 3,412,257.51/2,113.91
  6. Step 6: Final answer
    x = 1,614.20

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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.