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Finding the Fourth Proportional to 3,679.92, 5,071.68 and 2,683.62

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Solution

The fourth proportional to 3,679.92, 5,071.68 and 2,683.62 is: 3,698.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.92 : 5,071.68 = 2,683.62 : x
  2. Step 2: Convert to fraction form
    3,679.92/5,071.68 = 2,683.62/x
  3. Step 3: Cross multiply
    3,679.92x = 5,071.68 × 2,683.62
  4. Step 4: Simplify right side
    3,679.92x = 13,610,461.88
  5. Step 5: Solve for x
    x = 13,610,461.88/3,679.92
  6. Step 6: Final answer
    x = 3,698.58

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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.