Home / 7,127.46-10,692.41-3,180.20

Finding the Fourth Proportional to 7,127.46, 10,692.41 and 3,180.20

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Solution

The fourth proportional to 7,127.46, 10,692.41 and 3,180.20 is: 4,770.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,127.46 : 10,692.41 = 3,180.20 : x
  2. Step 2: Convert to fraction form
    7,127.46/10,692.41 = 3,180.20/x
  3. Step 3: Cross multiply
    7,127.46x = 10,692.41 × 3,180.20
  4. Step 4: Simplify right side
    7,127.46x = 34,003,932.92
  5. Step 5: Solve for x
    x = 34,003,932.92/7,127.46
  6. Step 6: Final answer
    x = 4,770.83

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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.