Home / 2,555.78-3,832.94-1,618.10

Finding the Fourth Proportional to 2,555.78, 3,832.94 and 1,618.10

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Solution

The fourth proportional to 2,555.78, 3,832.94 and 1,618.10 is: 2,426.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,555.78 : 3,832.94 = 1,618.10 : x
  2. Step 2: Convert to fraction form
    2,555.78/3,832.94 = 1,618.10/x
  3. Step 3: Cross multiply
    2,555.78x = 3,832.94 × 1,618.10
  4. Step 4: Simplify right side
    2,555.78x = 6,202,052.96
  5. Step 5: Solve for x
    x = 6,202,052.96/2,555.78
  6. Step 6: Final answer
    x = 2,426.68

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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.