Home / 3,579.60-5,368.68-2,279.28

Finding the Fourth Proportional to 3,579.60, 5,368.68 and 2,279.28

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Solution

The fourth proportional to 3,579.60, 5,368.68 and 2,279.28 is: 3,418.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,579.60 : 5,368.68 = 2,279.28 : x
  2. Step 2: Convert to fraction form
    3,579.60/5,368.68 = 2,279.28/x
  3. Step 3: Cross multiply
    3,579.60x = 5,368.68 × 2,279.28
  4. Step 4: Simplify right side
    3,579.60x = 12,236,724.95
  5. Step 5: Solve for x
    x = 12,236,724.95/3,579.60
  6. Step 6: Final answer
    x = 3,418.46

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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.