Home / 3,110.76-4,666.68-1,379.52

Finding the Fourth Proportional to 3,110.76, 4,666.68 and 1,379.52

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Solution

The fourth proportional to 3,110.76, 4,666.68 and 1,379.52 is: 2,069.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,110.76 : 4,666.68 = 1,379.52 : x
  2. Step 2: Convert to fraction form
    3,110.76/4,666.68 = 1,379.52/x
  3. Step 3: Cross multiply
    3,110.76x = 4,666.68 × 1,379.52
  4. Step 4: Simplify right side
    3,110.76x = 6,437,778.39
  5. Step 5: Solve for x
    x = 6,437,778.39/3,110.76
  6. Step 6: Final answer
    x = 2,069.52

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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.