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Finding the Fourth Proportional to 2,753.56, 4,130.22 and 1,109.56

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Solution

The fourth proportional to 2,753.56, 4,130.22 and 1,109.56 is: 1,664.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,753.56 : 4,130.22 = 1,109.56 : x
  2. Step 2: Convert to fraction form
    2,753.56/4,130.22 = 1,109.56/x
  3. Step 3: Cross multiply
    2,753.56x = 4,130.22 × 1,109.56
  4. Step 4: Simplify right side
    2,753.56x = 4,582,726.90
  5. Step 5: Solve for x
    x = 4,582,726.90/2,753.56
  6. Step 6: Final answer
    x = 1,664.29

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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.