Home / 2,579.16-3,868.05-1,117.97

Finding the Fourth Proportional to 2,579.16, 3,868.05 and 1,117.97

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Solution

The fourth proportional to 2,579.16, 3,868.05 and 1,117.97 is: 1,676.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,579.16 : 3,868.05 = 1,117.97 : x
  2. Step 2: Convert to fraction form
    2,579.16/3,868.05 = 1,117.97/x
  3. Step 3: Cross multiply
    2,579.16x = 3,868.05 × 1,117.97
  4. Step 4: Simplify right side
    2,579.16x = 4,324,363.22
  5. Step 5: Solve for x
    x = 4,324,363.22/2,579.16
  6. Step 6: Final answer
    x = 1,676.66

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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.