Home / 6,628.11-9,146.26-3,902.21

Finding the Fourth Proportional to 6,628.11, 9,146.26 and 3,902.21

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Solution

The fourth proportional to 6,628.11, 9,146.26 and 3,902.21 is: 5,384.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,628.11 : 9,146.26 = 3,902.21 : x
  2. Step 2: Convert to fraction form
    6,628.11/9,146.26 = 3,902.21/x
  3. Step 3: Cross multiply
    6,628.11x = 9,146.26 × 3,902.21
  4. Step 4: Simplify right side
    6,628.11x = 35,690,650.18
  5. Step 5: Solve for x
    x = 35,690,650.18/6,628.11
  6. Step 6: Final answer
    x = 5,384.74

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.