Home / 4,786.32-7,177.66-3,142.43

Finding the Fourth Proportional to 4,786.32, 7,177.66 and 3,142.43

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Solution

The fourth proportional to 4,786.32, 7,177.66 and 3,142.43 is: 4,712.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,786.32 : 7,177.66 = 3,142.43 : x
  2. Step 2: Convert to fraction form
    4,786.32/7,177.66 = 3,142.43/x
  3. Step 3: Cross multiply
    4,786.32x = 7,177.66 × 3,142.43
  4. Step 4: Simplify right side
    4,786.32x = 22,555,294.11
  5. Step 5: Solve for x
    x = 22,555,294.11/4,786.32
  6. Step 6: Final answer
    x = 4,712.45

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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.