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Finding the Fourth Proportional to 1,294.67, 1,942.16 and 601.21

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Solution

The fourth proportional to 1,294.67, 1,942.16 and 601.21 is: 901.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294.67 : 1,942.16 = 601.21 : x
  2. Step 2: Convert to fraction form
    1,294.67/1,942.16 = 601.21/x
  3. Step 3: Cross multiply
    1,294.67x = 1,942.16 × 601.21
  4. Step 4: Simplify right side
    1,294.67x = 1,167,646.01
  5. Step 5: Solve for x
    x = 1,167,646.01/1,294.67
  6. Step 6: Final answer
    x = 901.89

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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.