Home / 2,341.85-3,231.09-1,397.66

Finding the Fourth Proportional to 2,341.85, 3,231.09 and 1,397.66

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Solution

The fourth proportional to 2,341.85, 3,231.09 and 1,397.66 is: 1,928.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,341.85 : 3,231.09 = 1,397.66 : x
  2. Step 2: Convert to fraction form
    2,341.85/3,231.09 = 1,397.66/x
  3. Step 3: Cross multiply
    2,341.85x = 3,231.09 × 1,397.66
  4. Step 4: Simplify right side
    2,341.85x = 4,515,949.09
  5. Step 5: Solve for x
    x = 4,515,949.09/2,341.85
  6. Step 6: Final answer
    x = 1,928.37

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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.