Home / 2,756.72-4,135.62-1,025.48

Finding the Fourth Proportional to 2,756.72, 4,135.62 and 1,025.48

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Solution

The fourth proportional to 2,756.72, 4,135.62 and 1,025.48 is: 1,538.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,756.72 : 4,135.62 = 1,025.48 : x
  2. Step 2: Convert to fraction form
    2,756.72/4,135.62 = 1,025.48/x
  3. Step 3: Cross multiply
    2,756.72x = 4,135.62 × 1,025.48
  4. Step 4: Simplify right side
    2,756.72x = 4,240,995.60
  5. Step 5: Solve for x
    x = 4,240,995.60/2,756.72
  6. Step 6: Final answer
    x = 1,538.42

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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.