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Finding the Fourth Proportional to 1,993.03, 2,750.84 and 1,293.19

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Solution

The fourth proportional to 1,993.03, 2,750.84 and 1,293.19 is: 1,784.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993.03 : 2,750.84 = 1,293.19 : x
  2. Step 2: Convert to fraction form
    1,993.03/2,750.84 = 1,293.19/x
  3. Step 3: Cross multiply
    1,993.03x = 2,750.84 × 1,293.19
  4. Step 4: Simplify right side
    1,993.03x = 3,557,358.78
  5. Step 5: Solve for x
    x = 3,557,358.78/1,993.03
  6. Step 6: Final answer
    x = 1,784.90

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1.5x scale

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.