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Finding the Fourth Proportional to 1,273.50, 1,910.49 and 589.50

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Solution

The fourth proportional to 1,273.50, 1,910.49 and 589.50 is: 884.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,273.50 : 1,910.49 = 589.50 : x
  2. Step 2: Convert to fraction form
    1,273.50/1,910.49 = 589.50/x
  3. Step 3: Cross multiply
    1,273.50x = 1,910.49 × 589.50
  4. Step 4: Simplify right side
    1,273.50x = 1,126,233.86
  5. Step 5: Solve for x
    x = 1,126,233.86/1,273.50
  6. Step 6: Final answer
    x = 884.36

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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.