Home / 2,231.36-3,079.71-1,347.24

Finding the Fourth Proportional to 2,231.36, 3,079.71 and 1,347.24

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Solution

The fourth proportional to 2,231.36, 3,079.71 and 1,347.24 is: 1,859.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,231.36 : 3,079.71 = 1,347.24 : x
  2. Step 2: Convert to fraction form
    2,231.36/3,079.71 = 1,347.24/x
  3. Step 3: Cross multiply
    2,231.36x = 3,079.71 × 1,347.24
  4. Step 4: Simplify right side
    2,231.36x = 4,149,108.50
  5. Step 5: Solve for x
    x = 4,149,108.50/2,231.36
  6. Step 6: Final answer
    x = 1,859.46

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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.