Home / 2,756.78-4,135.23-1,025.06

Finding the Fourth Proportional to 2,756.78, 4,135.23 and 1,025.06

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Solution

The fourth proportional to 2,756.78, 4,135.23 and 1,025.06 is: 1,537.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,756.78 : 4,135.23 = 1,025.06 : x
  2. Step 2: Convert to fraction form
    2,756.78/4,135.23 = 1,025.06/x
  3. Step 3: Cross multiply
    2,756.78x = 4,135.23 × 1,025.06
  4. Step 4: Simplify right side
    2,756.78x = 4,238,858.86
  5. Step 5: Solve for x
    x = 4,238,858.86/2,756.78
  6. Step 6: Final answer
    x = 1,537.61

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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.