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Finding the Fourth Proportional to 3,100.50, 4,650.76 and 1,048.50

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Solution

The fourth proportional to 3,100.50, 4,650.76 and 1,048.50 is: 1,572.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,100.50 : 4,650.76 = 1,048.50 : x
  2. Step 2: Convert to fraction form
    3,100.50/4,650.76 = 1,048.50/x
  3. Step 3: Cross multiply
    3,100.50x = 4,650.76 × 1,048.50
  4. Step 4: Simplify right side
    3,100.50x = 4,876,321.86
  5. Step 5: Solve for x
    x = 4,876,321.86/3,100.50
  6. Step 6: Final answer
    x = 1,572.75

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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.