Home / 5,106.42-7,047.36-2,868.48

Finding the Fourth Proportional to 5,106.42, 7,047.36 and 2,868.48

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Solution

The fourth proportional to 5,106.42, 7,047.36 and 2,868.48 is: 3,958.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,106.42 : 7,047.36 = 2,868.48 : x
  2. Step 2: Convert to fraction form
    5,106.42/7,047.36 = 2,868.48/x
  3. Step 3: Cross multiply
    5,106.42x = 7,047.36 × 2,868.48
  4. Step 4: Simplify right side
    5,106.42x = 20,215,211.21
  5. Step 5: Solve for x
    x = 20,215,211.21/5,106.42
  6. Step 6: Final answer
    x = 3,958.78

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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.