Home / 6,601.40-9,900.50-2,217.72

Finding the Fourth Proportional to 6,601.40, 9,900.50 and 2,217.72

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Solution

The fourth proportional to 6,601.40, 9,900.50 and 2,217.72 is: 3,326.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,601.40 : 9,900.50 = 2,217.72 : x
  2. Step 2: Convert to fraction form
    6,601.40/9,900.50 = 2,217.72/x
  3. Step 3: Cross multiply
    6,601.40x = 9,900.50 × 2,217.72
  4. Step 4: Simplify right side
    6,601.40x = 21,956,536.86
  5. Step 5: Solve for x
    x = 21,956,536.86/6,601.40
  6. Step 6: Final answer
    x = 3,326.04

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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.