Home / 2,320.82-3,202.80-1,272.89

Finding the Fourth Proportional to 2,320.82, 3,202.80 and 1,272.89

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Solution

The fourth proportional to 2,320.82, 3,202.80 and 1,272.89 is: 1,756.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,320.82 : 3,202.80 = 1,272.89 : x
  2. Step 2: Convert to fraction form
    2,320.82/3,202.80 = 1,272.89/x
  3. Step 3: Cross multiply
    2,320.82x = 3,202.80 × 1,272.89
  4. Step 4: Simplify right side
    2,320.82x = 4,076,812.09
  5. Step 5: Solve for x
    x = 4,076,812.09/2,320.82
  6. Step 6: Final answer
    x = 1,756.63

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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.