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Finding the Fourth Proportional to 2,873.81, 3,967.52 and 2,173.97

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Solution

The fourth proportional to 2,873.81, 3,967.52 and 2,173.97 is: 3,001.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,873.81 : 3,967.52 = 2,173.97 : x
  2. Step 2: Convert to fraction form
    2,873.81/3,967.52 = 2,173.97/x
  3. Step 3: Cross multiply
    2,873.81x = 3,967.52 × 2,173.97
  4. Step 4: Simplify right side
    2,873.81x = 8,625,268.50
  5. Step 5: Solve for x
    x = 8,625,268.50/2,873.81
  6. Step 6: Final answer
    x = 3,001.33

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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.