Home / 3,187.20-4,781.16-1,544.64

Finding the Fourth Proportional to 3,187.20, 4,781.16 and 1,544.64

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Solution

The fourth proportional to 3,187.20, 4,781.16 and 1,544.64 is: 2,317.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.20 : 4,781.16 = 1,544.64 : x
  2. Step 2: Convert to fraction form
    3,187.20/4,781.16 = 1,544.64/x
  3. Step 3: Cross multiply
    3,187.20x = 4,781.16 × 1,544.64
  4. Step 4: Simplify right side
    3,187.20x = 7,385,170.98
  5. Step 5: Solve for x
    x = 7,385,170.98/3,187.20
  6. Step 6: Final answer
    x = 2,317.13

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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.