Home / 3,780.78-5,219.64-2,523.96

Finding the Fourth Proportional to 3,780.78, 5,219.64 and 2,523.96

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Solution

The fourth proportional to 3,780.78, 5,219.64 and 2,523.96 is: 3,484.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.78 : 5,219.64 = 2,523.96 : x
  2. Step 2: Convert to fraction form
    3,780.78/5,219.64 = 2,523.96/x
  3. Step 3: Cross multiply
    3,780.78x = 5,219.64 × 2,523.96
  4. Step 4: Simplify right side
    3,780.78x = 13,174,162.57
  5. Step 5: Solve for x
    x = 13,174,162.57/3,780.78
  6. Step 6: Final answer
    x = 3,484.51

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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.