Home / 5,118.66-7,661.39-4,749.57

Finding the Fourth Proportional to 5,118.66, 7,661.39 and 4,749.57

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Solution

The fourth proportional to 5,118.66, 7,661.39 and 4,749.57 is: 7,108.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,118.66 : 7,661.39 = 4,749.57 : x
  2. Step 2: Convert to fraction form
    5,118.66/7,661.39 = 4,749.57/x
  3. Step 3: Cross multiply
    5,118.66x = 7,661.39 × 4,749.57
  4. Step 4: Simplify right side
    5,118.66x = 36,388,284.35
  5. Step 5: Solve for x
    x = 36,388,284.35/5,118.66
  6. Step 6: Final answer
    x = 7,108.95

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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.