Home / 6,871.05-10,306.59-3,172.20

Finding the Fourth Proportional to 6,871.05, 10,306.59 and 3,172.20

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Solution

The fourth proportional to 6,871.05, 10,306.59 and 3,172.20 is: 4,758.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,871.05 : 10,306.59 = 3,172.20 : x
  2. Step 2: Convert to fraction form
    6,871.05/10,306.59 = 3,172.20/x
  3. Step 3: Cross multiply
    6,871.05x = 10,306.59 × 3,172.20
  4. Step 4: Simplify right side
    6,871.05x = 32,694,564.80
  5. Step 5: Solve for x
    x = 32,694,564.80/6,871.05
  6. Step 6: Final answer
    x = 4,758.31

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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.