Home / 2,579.40-3,868.56-1,192.77

Finding the Fourth Proportional to 2,579.40, 3,868.56 and 1,192.77

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Solution

The fourth proportional to 2,579.40, 3,868.56 and 1,192.77 is: 1,788.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,579.40 : 3,868.56 = 1,192.77 : x
  2. Step 2: Convert to fraction form
    2,579.40/3,868.56 = 1,192.77/x
  3. Step 3: Cross multiply
    2,579.40x = 3,868.56 × 1,192.77
  4. Step 4: Simplify right side
    2,579.40x = 4,614,302.31
  5. Step 5: Solve for x
    x = 4,614,302.31/2,579.40
  6. Step 6: Final answer
    x = 1,788.91

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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.