Home / 2,231.63-3,079.80-1,347.38

Finding the Fourth Proportional to 2,231.63, 3,079.80 and 1,347.38

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Solution

The fourth proportional to 2,231.63, 3,079.80 and 1,347.38 is: 1,859.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,231.63 : 3,079.80 = 1,347.38 : x
  2. Step 2: Convert to fraction form
    2,231.63/3,079.80 = 1,347.38/x
  3. Step 3: Cross multiply
    2,231.63x = 3,079.80 × 1,347.38
  4. Step 4: Simplify right side
    2,231.63x = 4,149,645.53
  5. Step 5: Solve for x
    x = 4,149,645.53/2,231.63
  6. Step 6: Final answer
    x = 1,859.47

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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.