Home / 2,320.31-3,202-1,272.37

Finding the Fourth Proportional to 2,320.31, 3,202 and 1,272.37

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Solution

The fourth proportional to 2,320.31, 3,202 and 1,272.37 is: 1,755.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,320.31 : 3,202 = 1,272.37 : x
  2. Step 2: Convert to fraction form
    2,320.31/3,202 = 1,272.37/x
  3. Step 3: Cross multiply
    2,320.31x = 3,202 × 1,272.37
  4. Step 4: Simplify right side
    2,320.31x = 4,074,128.74
  5. Step 5: Solve for x
    x = 4,074,128.74/2,320.31
  6. Step 6: Final answer
    x = 1,755.86

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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.