Home / 4,191.78-6,287.69-1,418.48

Finding the Fourth Proportional to 4,191.78, 6,287.69 and 1,418.48

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Solution

The fourth proportional to 4,191.78, 6,287.69 and 1,418.48 is: 2,127.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,191.78 : 6,287.69 = 1,418.48 : x
  2. Step 2: Convert to fraction form
    4,191.78/6,287.69 = 1,418.48/x
  3. Step 3: Cross multiply
    4,191.78x = 6,287.69 × 1,418.48
  4. Step 4: Simplify right side
    4,191.78x = 8,918,923.98
  5. Step 5: Solve for x
    x = 8,918,923.98/4,191.78
  6. Step 6: Final answer
    x = 2,127.72

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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.