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Finding the Fourth Proportional to 1,796.74, 2,695.26 and 626.56

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Solution

The fourth proportional to 1,796.74, 2,695.26 and 626.56 is: 939.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,796.74 : 2,695.26 = 626.56 : x
  2. Step 2: Convert to fraction form
    1,796.74/2,695.26 = 626.56/x
  3. Step 3: Cross multiply
    1,796.74x = 2,695.26 × 626.56
  4. Step 4: Simplify right side
    1,796.74x = 1,688,742.11
  5. Step 5: Solve for x
    x = 1,688,742.11/1,796.74
  6. Step 6: Final answer
    x = 939.89

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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.