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Finding the Fourth Proportional to 1,774.73, 2,658.22 and 1,620.02

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Solution

The fourth proportional to 1,774.73, 2,658.22 and 1,620.02 is: 2,426.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,774.73 : 2,658.22 = 1,620.02 : x
  2. Step 2: Convert to fraction form
    1,774.73/2,658.22 = 1,620.02/x
  3. Step 3: Cross multiply
    1,774.73x = 2,658.22 × 1,620.02
  4. Step 4: Simplify right side
    1,774.73x = 4,306,369.56
  5. Step 5: Solve for x
    x = 4,306,369.56/1,774.73
  6. Step 6: Final answer
    x = 2,426.49

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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.