Home / 3,878.20-5,819.69-1,537.81

Finding the Fourth Proportional to 3,878.20, 5,819.69 and 1,537.81

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Solution

The fourth proportional to 3,878.20, 5,819.69 and 1,537.81 is: 2,307.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878.20 : 5,819.69 = 1,537.81 : x
  2. Step 2: Convert to fraction form
    3,878.20/5,819.69 = 1,537.81/x
  3. Step 3: Cross multiply
    3,878.20x = 5,819.69 × 1,537.81
  4. Step 4: Simplify right side
    3,878.20x = 8,949,577.48
  5. Step 5: Solve for x
    x = 8,949,577.48/3,878.20
  6. Step 6: Final answer
    x = 2,307.66

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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.