Home / 5,112.96-7,055.92-2,874.94

Finding the Fourth Proportional to 5,112.96, 7,055.92 and 2,874.94

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Solution

The fourth proportional to 5,112.96, 7,055.92 and 2,874.94 is: 3,967.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,112.96 : 7,055.92 = 2,874.94 : x
  2. Step 2: Convert to fraction form
    5,112.96/7,055.92 = 2,874.94/x
  3. Step 3: Cross multiply
    5,112.96x = 7,055.92 × 2,874.94
  4. Step 4: Simplify right side
    5,112.96x = 20,285,346.64
  5. Step 5: Solve for x
    x = 20,285,346.64/5,112.96
  6. Step 6: Final answer
    x = 3,967.44

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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.