Home / 5,106.77-7,047.37-2,868.74

Finding the Fourth Proportional to 5,106.77, 7,047.37 and 2,868.74

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Solution

The fourth proportional to 5,106.77, 7,047.37 and 2,868.74 is: 3,958.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,106.77 : 7,047.37 = 2,868.74 : x
  2. Step 2: Convert to fraction form
    5,106.77/7,047.37 = 2,868.74/x
  3. Step 3: Cross multiply
    5,106.77x = 7,047.37 × 2,868.74
  4. Step 4: Simplify right side
    5,106.77x = 20,217,072.21
  5. Step 5: Solve for x
    x = 20,217,072.21/5,106.77
  6. Step 6: Final answer
    x = 3,958.88

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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.