Home / 4,518.08-6,775.68-2,787.20

Finding the Fourth Proportional to 4,518.08, 6,775.68 and 2,787.20

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Solution

The fourth proportional to 4,518.08, 6,775.68 and 2,787.20 is: 4,179.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,518.08 : 6,775.68 = 2,787.20 : x
  2. Step 2: Convert to fraction form
    4,518.08/6,775.68 = 2,787.20/x
  3. Step 3: Cross multiply
    4,518.08x = 6,775.68 × 2,787.20
  4. Step 4: Simplify right side
    4,518.08x = 18,885,175.30
  5. Step 5: Solve for x
    x = 18,885,175.30/4,518.08
  6. Step 6: Final answer
    x = 4,179.91

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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.