Home / 3,159.15-4,737.82-938.46

Finding the Fourth Proportional to 3,159.15, 4,737.82 and 938.46

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Solution

The fourth proportional to 3,159.15, 4,737.82 and 938.46 is: 1,407.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,159.15 : 4,737.82 = 938.46 : x
  2. Step 2: Convert to fraction form
    3,159.15/4,737.82 = 938.46/x
  3. Step 3: Cross multiply
    3,159.15x = 4,737.82 × 938.46
  4. Step 4: Simplify right side
    3,159.15x = 4,446,254.56
  5. Step 5: Solve for x
    x = 4,446,254.56/3,159.15
  6. Step 6: Final answer
    x = 1,407.42

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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.