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Finding the Fourth Proportional to 3,277.68, 4,916.75 and 937.86

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Solution

The fourth proportional to 3,277.68, 4,916.75 and 937.86 is: 1,406.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,277.68 : 4,916.75 = 937.86 : x
  2. Step 2: Convert to fraction form
    3,277.68/4,916.75 = 937.86/x
  3. Step 3: Cross multiply
    3,277.68x = 4,916.75 × 937.86
  4. Step 4: Simplify right side
    3,277.68x = 4,611,218.47
  5. Step 5: Solve for x
    x = 4,611,218.47/3,277.68
  6. Step 6: Final answer
    x = 1,406.85

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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.