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Finding the Fourth Proportional to 2,251, 3,376.50 and 607.42

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Solution

The fourth proportional to 2,251, 3,376.50 and 607.42 is: 911.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,251 : 3,376.50 = 607.42 : x
  2. Step 2: Convert to fraction form
    2,251/3,376.50 = 607.42/x
  3. Step 3: Cross multiply
    2,251x = 3,376.50 × 607.42
  4. Step 4: Simplify right side
    2,251x = 2,050,953.63
  5. Step 5: Solve for x
    x = 2,050,953.63/2,251
  6. Step 6: Final answer
    x = 911.13

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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.