Home / 3,278.72-4,919.88-2,302.88

Finding the Fourth Proportional to 3,278.72, 4,919.88 and 2,302.88

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Solution

The fourth proportional to 3,278.72, 4,919.88 and 2,302.88 is: 3,455.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.72 : 4,919.88 = 2,302.88 : x
  2. Step 2: Convert to fraction form
    3,278.72/4,919.88 = 2,302.88/x
  3. Step 3: Cross multiply
    3,278.72x = 4,919.88 × 2,302.88
  4. Step 4: Simplify right side
    3,278.72x = 11,329,893.25
  5. Step 5: Solve for x
    x = 11,329,893.25/3,278.72
  6. Step 6: Final answer
    x = 3,455.58

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1.5x scale

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.