Home / 5,112.16-7,054.45-2,874.02

Finding the Fourth Proportional to 5,112.16, 7,054.45 and 2,874.02

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Solution

The fourth proportional to 5,112.16, 7,054.45 and 2,874.02 is: 3,965.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,112.16 : 7,054.45 = 2,874.02 : x
  2. Step 2: Convert to fraction form
    5,112.16/7,054.45 = 2,874.02/x
  3. Step 3: Cross multiply
    5,112.16x = 7,054.45 × 2,874.02
  4. Step 4: Simplify right side
    5,112.16x = 20,274,587.93
  5. Step 5: Solve for x
    x = 20,274,587.93/5,112.16
  6. Step 6: Final answer
    x = 3,965.96

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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.