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Finding the Fourth Proportional to 3,492.92, 5,234.93 and 1,639.94

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Solution

The fourth proportional to 3,492.92, 5,234.93 and 1,639.94 is: 2,457.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,492.92 : 5,234.93 = 1,639.94 : x
  2. Step 2: Convert to fraction form
    3,492.92/5,234.93 = 1,639.94/x
  3. Step 3: Cross multiply
    3,492.92x = 5,234.93 × 1,639.94
  4. Step 4: Simplify right side
    3,492.92x = 8,584,971.10
  5. Step 5: Solve for x
    x = 8,584,971.10/3,492.92
  6. Step 6: Final answer
    x = 2,457.82

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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.