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Finding the Fourth Proportional to 2,753.10, 4,124.05 and 1,709.90

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Solution

The fourth proportional to 2,753.10, 4,124.05 and 1,709.90 is: 2,561.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,753.10 : 4,124.05 = 1,709.90 : x
  2. Step 2: Convert to fraction form
    2,753.10/4,124.05 = 1,709.90/x
  3. Step 3: Cross multiply
    2,753.10x = 4,124.05 × 1,709.90
  4. Step 4: Simplify right side
    2,753.10x = 7,051,713.10
  5. Step 5: Solve for x
    x = 7,051,713.10/2,753.10
  6. Step 6: Final answer
    x = 2,561.37

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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.