Home / 3,120.73-4,677.02-1,269.68

Finding the Fourth Proportional to 3,120.73, 4,677.02 and 1,269.68

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Solution

The fourth proportional to 3,120.73, 4,677.02 and 1,269.68 is: 1,902.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120.73 : 4,677.02 = 1,269.68 : x
  2. Step 2: Convert to fraction form
    3,120.73/4,677.02 = 1,269.68/x
  3. Step 3: Cross multiply
    3,120.73x = 4,677.02 × 1,269.68
  4. Step 4: Simplify right side
    3,120.73x = 5,938,318.75
  5. Step 5: Solve for x
    x = 5,938,318.75/3,120.73
  6. Step 6: Final answer
    x = 1,902.86

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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.