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Finding the Fourth Proportional to 2,757.66, 4,137.40 and 1,113.31

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Solution

The fourth proportional to 2,757.66, 4,137.40 and 1,113.31 is: 1,670.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,757.66 : 4,137.40 = 1,113.31 : x
  2. Step 2: Convert to fraction form
    2,757.66/4,137.40 = 1,113.31/x
  3. Step 3: Cross multiply
    2,757.66x = 4,137.40 × 1,113.31
  4. Step 4: Simplify right side
    2,757.66x = 4,606,215.36
  5. Step 5: Solve for x
    x = 4,606,215.36/2,757.66
  6. Step 6: Final answer
    x = 1,670.34

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.