Home / 3,508-4,836.72-2,877.76

Finding the Fourth Proportional to 3,508, 4,836.72 and 2,877.76

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Solution

The fourth proportional to 3,508, 4,836.72 and 2,877.76 is: 3,967.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,508 : 4,836.72 = 2,877.76 : x
  2. Step 2: Convert to fraction form
    3,508/4,836.72 = 2,877.76/x
  3. Step 3: Cross multiply
    3,508x = 4,836.72 × 2,877.76
  4. Step 4: Simplify right side
    3,508x = 13,918,919.35
  5. Step 5: Solve for x
    x = 13,918,919.35/3,508
  6. Step 6: Final answer
    x = 3,967.76

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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.