Home / 3,066.42-4,220.97-2,672.76

Finding the Fourth Proportional to 3,066.42, 4,220.97 and 2,672.76

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Solution

The fourth proportional to 3,066.42, 4,220.97 and 2,672.76 is: 3,679.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,066.42 : 4,220.97 = 2,672.76 : x
  2. Step 2: Convert to fraction form
    3,066.42/4,220.97 = 2,672.76/x
  3. Step 3: Cross multiply
    3,066.42x = 4,220.97 × 2,672.76
  4. Step 4: Simplify right side
    3,066.42x = 11,281,639.78
  5. Step 5: Solve for x
    x = 11,281,639.78/3,066.42
  6. Step 6: Final answer
    x = 3,679.09

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Half scale
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Double scale
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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.