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Finding the Fourth Proportional to 2,757.45, 4,133.43 and 1,368.66

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Solution

The fourth proportional to 2,757.45, 4,133.43 and 1,368.66 is: 2,051.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,757.45 : 4,133.43 = 1,368.66 : x
  2. Step 2: Convert to fraction form
    2,757.45/4,133.43 = 1,368.66/x
  3. Step 3: Cross multiply
    2,757.45x = 4,133.43 × 1,368.66
  4. Step 4: Simplify right side
    2,757.45x = 5,657,260.30
  5. Step 5: Solve for x
    x = 5,657,260.30/2,757.45
  6. Step 6: Final answer
    x = 2,051.63

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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.