Home / 6,628.84-9,146.26-3,976.76

Finding the Fourth Proportional to 6,628.84, 9,146.26 and 3,976.76

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Solution

The fourth proportional to 6,628.84, 9,146.26 and 3,976.76 is: 5,487.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,628.84 : 9,146.26 = 3,976.76 : x
  2. Step 2: Convert to fraction form
    6,628.84/9,146.26 = 3,976.76/x
  3. Step 3: Cross multiply
    6,628.84x = 9,146.26 × 3,976.76
  4. Step 4: Simplify right side
    6,628.84x = 36,372,480.92
  5. Step 5: Solve for x
    x = 36,372,480.92/6,628.84
  6. Step 6: Final answer
    x = 5,487.01

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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.