Home / 4,771.29-7,149.67-2,427.78

Finding the Fourth Proportional to 4,771.29, 7,149.67 and 2,427.78

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Solution

The fourth proportional to 4,771.29, 7,149.67 and 2,427.78 is: 3,637.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,771.29 : 7,149.67 = 2,427.78 : x
  2. Step 2: Convert to fraction form
    4,771.29/7,149.67 = 2,427.78/x
  3. Step 3: Cross multiply
    4,771.29x = 7,149.67 × 2,427.78
  4. Step 4: Simplify right side
    4,771.29x = 17,357,825.83
  5. Step 5: Solve for x
    x = 17,357,825.83/4,771.29
  6. Step 6: Final answer
    x = 3,637.97

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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.