Home / 3,487.46-4,812.68-1,894.11

Finding the Fourth Proportional to 3,487.46, 4,812.68 and 1,894.11

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Solution

The fourth proportional to 3,487.46, 4,812.68 and 1,894.11 is: 2,613.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.46 : 4,812.68 = 1,894.11 : x
  2. Step 2: Convert to fraction form
    3,487.46/4,812.68 = 1,894.11/x
  3. Step 3: Cross multiply
    3,487.46x = 4,812.68 × 1,894.11
  4. Step 4: Simplify right side
    3,487.46x = 9,115,735.84
  5. Step 5: Solve for x
    x = 9,115,735.84/3,487.46
  6. Step 6: Final answer
    x = 2,613.86

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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.