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Finding the Fourth Proportional to 1,995.03, 2,753.19 and 1,155.74

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Solution

The fourth proportional to 1,995.03, 2,753.19 and 1,155.74 is: 1,594.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,995.03 : 2,753.19 = 1,155.74 : x
  2. Step 2: Convert to fraction form
    1,995.03/2,753.19 = 1,155.74/x
  3. Step 3: Cross multiply
    1,995.03x = 2,753.19 × 1,155.74
  4. Step 4: Simplify right side
    1,995.03x = 3,181,958.04
  5. Step 5: Solve for x
    x = 3,181,958.04/1,995.03
  6. Step 6: Final answer
    x = 1,594.94

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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.