Home / 3,122.18-4,308.26-1,724.66

Finding the Fourth Proportional to 3,122.18, 4,308.26 and 1,724.66

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Solution

The fourth proportional to 3,122.18, 4,308.26 and 1,724.66 is: 2,379.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.18 : 4,308.26 = 1,724.66 : x
  2. Step 2: Convert to fraction form
    3,122.18/4,308.26 = 1,724.66/x
  3. Step 3: Cross multiply
    3,122.18x = 4,308.26 × 1,724.66
  4. Step 4: Simplify right side
    3,122.18x = 7,430,283.69
  5. Step 5: Solve for x
    x = 7,430,283.69/3,122.18
  6. Step 6: Final answer
    x = 2,379.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.