Home / 2,579.64-3,868.08-1,279.52

Finding the Fourth Proportional to 2,579.64, 3,868.08 and 1,279.52

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Solution

The fourth proportional to 2,579.64, 3,868.08 and 1,279.52 is: 1,918.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,579.64 : 3,868.08 = 1,279.52 : x
  2. Step 2: Convert to fraction form
    2,579.64/3,868.08 = 1,279.52/x
  3. Step 3: Cross multiply
    2,579.64x = 3,868.08 × 1,279.52
  4. Step 4: Simplify right side
    2,579.64x = 4,949,285.72
  5. Step 5: Solve for x
    x = 4,949,285.72/2,579.64
  6. Step 6: Final answer
    x = 1,918.60

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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.