Home / 2,320.09-3,201.75-1,272.13

Finding the Fourth Proportional to 2,320.09, 3,201.75 and 1,272.13

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Solution

The fourth proportional to 2,320.09, 3,201.75 and 1,272.13 is: 1,755.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,320.09 : 3,201.75 = 1,272.13 : x
  2. Step 2: Convert to fraction form
    2,320.09/3,201.75 = 1,272.13/x
  3. Step 3: Cross multiply
    2,320.09x = 3,201.75 × 1,272.13
  4. Step 4: Simplify right side
    2,320.09x = 4,073,026.22
  5. Step 5: Solve for x
    x = 4,073,026.22/2,320.09
  6. Step 6: Final answer
    x = 1,755.55

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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.