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Finding the Fourth Proportional to 2,755.78, 4,135.02 and 1,295.06

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Solution

The fourth proportional to 2,755.78, 4,135.02 and 1,295.06 is: 1,943.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,755.78 : 4,135.02 = 1,295.06 : x
  2. Step 2: Convert to fraction form
    2,755.78/4,135.02 = 1,295.06/x
  3. Step 3: Cross multiply
    2,755.78x = 4,135.02 × 1,295.06
  4. Step 4: Simplify right side
    2,755.78x = 5,355,099.00
  5. Step 5: Solve for x
    x = 5,355,099.00/2,755.78
  6. Step 6: Final answer
    x = 1,943.22

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1.5x scale

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.