Home / 6,527.20-9,790.80-2,145.10

Finding the Fourth Proportional to 6,527.20, 9,790.80 and 2,145.10

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Solution

The fourth proportional to 6,527.20, 9,790.80 and 2,145.10 is: 3,217.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,527.20 : 9,790.80 = 2,145.10 : x
  2. Step 2: Convert to fraction form
    6,527.20/9,790.80 = 2,145.10/x
  3. Step 3: Cross multiply
    6,527.20x = 9,790.80 × 2,145.10
  4. Step 4: Simplify right side
    6,527.20x = 21,002,245.08
  5. Step 5: Solve for x
    x = 21,002,245.08/6,527.20
  6. Step 6: Final answer
    x = 3,217.65

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Similar ratio
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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.