Home / 4,781.20-7,171.81-1,494.31

Finding the Fourth Proportional to 4,781.20, 7,171.81 and 1,494.31

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Solution

The fourth proportional to 4,781.20, 7,171.81 and 1,494.31 is: 2,241.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,781.20 : 7,171.81 = 1,494.31 : x
  2. Step 2: Convert to fraction form
    4,781.20/7,171.81 = 1,494.31/x
  3. Step 3: Cross multiply
    4,781.20x = 7,171.81 × 1,494.31
  4. Step 4: Simplify right side
    4,781.20x = 10,716,900.86
  5. Step 5: Solve for x
    x = 10,716,900.86/4,781.20
  6. Step 6: Final answer
    x = 2,241.47

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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.