Home / 3,318.29-4,977.75-1,237.81

Finding the Fourth Proportional to 3,318.29, 4,977.75 and 1,237.81

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Solution

The fourth proportional to 3,318.29, 4,977.75 and 1,237.81 is: 1,856.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.29 : 4,977.75 = 1,237.81 : x
  2. Step 2: Convert to fraction form
    3,318.29/4,977.75 = 1,237.81/x
  3. Step 3: Cross multiply
    3,318.29x = 4,977.75 × 1,237.81
  4. Step 4: Simplify right side
    3,318.29x = 6,161,508.73
  5. Step 5: Solve for x
    x = 6,161,508.73/3,318.29
  6. Step 6: Final answer
    x = 1,856.83

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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.