Home / 5,112.20-7,054.45-2,873.64

Finding the Fourth Proportional to 5,112.20, 7,054.45 and 2,873.64

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Solution

The fourth proportional to 5,112.20, 7,054.45 and 2,873.64 is: 3,965.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,112.20 : 7,054.45 = 2,873.64 : x
  2. Step 2: Convert to fraction form
    5,112.20/7,054.45 = 2,873.64/x
  3. Step 3: Cross multiply
    5,112.20x = 7,054.45 × 2,873.64
  4. Step 4: Simplify right side
    5,112.20x = 20,271,949.70
  5. Step 5: Solve for x
    x = 20,271,949.70/5,112.20
  6. Step 6: Final answer
    x = 3,965.41

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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.