Home / 7,107.21-10,662.03-3,211.92

Finding the Fourth Proportional to 7,107.21, 10,662.03 and 3,211.92

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Solution

The fourth proportional to 7,107.21, 10,662.03 and 3,211.92 is: 4,818.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,107.21 : 10,662.03 = 3,211.92 : x
  2. Step 2: Convert to fraction form
    7,107.21/10,662.03 = 3,211.92/x
  3. Step 3: Cross multiply
    7,107.21x = 10,662.03 × 3,211.92
  4. Step 4: Simplify right side
    7,107.21x = 34,245,587.40
  5. Step 5: Solve for x
    x = 34,245,587.40/7,107.21
  6. Step 6: Final answer
    x = 4,818.43

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1.5x scale

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.