Home / 1,995.20-2,753.99-1,365.49

Finding the Fourth Proportional to 1,995.20, 2,753.99 and 1,365.49

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Solution

The fourth proportional to 1,995.20, 2,753.99 and 1,365.49 is: 1,884.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,995.20 : 2,753.99 = 1,365.49 : x
  2. Step 2: Convert to fraction form
    1,995.20/2,753.99 = 1,365.49/x
  3. Step 3: Cross multiply
    1,995.20x = 2,753.99 × 1,365.49
  4. Step 4: Simplify right side
    1,995.20x = 3,760,545.81
  5. Step 5: Solve for x
    x = 3,760,545.81/1,995.20
  6. Step 6: Final answer
    x = 1,884.80

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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.