Home / 3,186.88-4,778.66-1,454

Finding the Fourth Proportional to 3,186.88, 4,778.66 and 1,454

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Solution

The fourth proportional to 3,186.88, 4,778.66 and 1,454 is: 2,180.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.88 : 4,778.66 = 1,454 : x
  2. Step 2: Convert to fraction form
    3,186.88/4,778.66 = 1,454/x
  3. Step 3: Cross multiply
    3,186.88x = 4,778.66 × 1,454
  4. Step 4: Simplify right side
    3,186.88x = 6,948,171.64
  5. Step 5: Solve for x
    x = 6,948,171.64/3,186.88
  6. Step 6: Final answer
    x = 2,180.24

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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.