Home / 3,631.96-5,447.66-1,291.87

Finding the Fourth Proportional to 3,631.96, 5,447.66 and 1,291.87

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Solution

The fourth proportional to 3,631.96, 5,447.66 and 1,291.87 is: 1,937.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,631.96 : 5,447.66 = 1,291.87 : x
  2. Step 2: Convert to fraction form
    3,631.96/5,447.66 = 1,291.87/x
  3. Step 3: Cross multiply
    3,631.96x = 5,447.66 × 1,291.87
  4. Step 4: Simplify right side
    3,631.96x = 7,037,641.29
  5. Step 5: Solve for x
    x = 7,037,641.29/3,631.96
  6. Step 6: Final answer
    x = 1,937.70

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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.