Home / 2,074.28-3,112.62-1,913.90

Finding the Fourth Proportional to 2,074.28, 3,112.62 and 1,913.90

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Solution

The fourth proportional to 2,074.28, 3,112.62 and 1,913.90 is: 2,871.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,074.28 : 3,112.62 = 1,913.90 : x
  2. Step 2: Convert to fraction form
    2,074.28/3,112.62 = 1,913.90/x
  3. Step 3: Cross multiply
    2,074.28x = 3,112.62 × 1,913.90
  4. Step 4: Simplify right side
    2,074.28x = 5,957,243.42
  5. Step 5: Solve for x
    x = 5,957,243.42/2,074.28
  6. Step 6: Final answer
    x = 2,871.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.