Home / 3,109.86-4,660.40-1,723.82

Finding the Fourth Proportional to 3,109.86, 4,660.40 and 1,723.82

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Solution

The fourth proportional to 3,109.86, 4,660.40 and 1,723.82 is: 2,583.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.86 : 4,660.40 = 1,723.82 : x
  2. Step 2: Convert to fraction form
    3,109.86/4,660.40 = 1,723.82/x
  3. Step 3: Cross multiply
    3,109.86x = 4,660.40 × 1,723.82
  4. Step 4: Simplify right side
    3,109.86x = 8,033,671.74
  5. Step 5: Solve for x
    x = 8,033,671.74/3,109.86
  6. Step 6: Final answer
    x = 2,583.29

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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.