Home / 3,173.19-4,378.48-1,993.42

Finding the Fourth Proportional to 3,173.19, 4,378.48 and 1,993.42

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Solution

The fourth proportional to 3,173.19, 4,378.48 and 1,993.42 is: 2,750.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,173.19 : 4,378.48 = 1,993.42 : x
  2. Step 2: Convert to fraction form
    3,173.19/4,378.48 = 1,993.42/x
  3. Step 3: Cross multiply
    3,173.19x = 4,378.48 × 1,993.42
  4. Step 4: Simplify right side
    3,173.19x = 8,728,149.60
  5. Step 5: Solve for x
    x = 8,728,149.60/3,173.19
  6. Step 6: Final answer
    x = 2,750.59

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Half scale
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Double scale
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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.