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Finding the Fourth Proportional to 1,693.56, 2,338.11 and 1,270.50

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Solution

The fourth proportional to 1,693.56, 2,338.11 and 1,270.50 is: 1,754.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,693.56 : 2,338.11 = 1,270.50 : x
  2. Step 2: Convert to fraction form
    1,693.56/2,338.11 = 1,270.50/x
  3. Step 3: Cross multiply
    1,693.56x = 2,338.11 × 1,270.50
  4. Step 4: Simplify right side
    1,693.56x = 2,970,568.76
  5. Step 5: Solve for x
    x = 2,970,568.76/1,693.56
  6. Step 6: Final answer
    x = 1,754.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.