Home / 5,112.40-7,054.60-2,873.92

Finding the Fourth Proportional to 5,112.40, 7,054.60 and 2,873.92

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Solution

The fourth proportional to 5,112.40, 7,054.60 and 2,873.92 is: 3,965.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,112.40 : 7,054.60 = 2,873.92 : x
  2. Step 2: Convert to fraction form
    5,112.40/7,054.60 = 2,873.92/x
  3. Step 3: Cross multiply
    5,112.40x = 7,054.60 × 2,873.92
  4. Step 4: Simplify right side
    5,112.40x = 20,274,356.03
  5. Step 5: Solve for x
    x = 20,274,356.03/5,112.40
  6. Step 6: Final answer
    x = 3,965.72

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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.