Home / 3,278.72-4,528.48-2,579.20

Finding the Fourth Proportional to 3,278.72, 4,528.48 and 2,579.20

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Solution

The fourth proportional to 3,278.72, 4,528.48 and 2,579.20 is: 3,562.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.72 : 4,528.48 = 2,579.20 : x
  2. Step 2: Convert to fraction form
    3,278.72/4,528.48 = 2,579.20/x
  3. Step 3: Cross multiply
    3,278.72x = 4,528.48 × 2,579.20
  4. Step 4: Simplify right side
    3,278.72x = 11,679,855.62
  5. Step 5: Solve for x
    x = 11,679,855.62/3,278.72
  6. Step 6: Final answer
    x = 3,562.32

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1.5x scale

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.