Home / 5,217.92-7,829.04-2,142.08

Finding the Fourth Proportional to 5,217.92, 7,829.04 and 2,142.08

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Solution

The fourth proportional to 5,217.92, 7,829.04 and 2,142.08 is: 3,214.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217.92 : 7,829.04 = 2,142.08 : x
  2. Step 2: Convert to fraction form
    5,217.92/7,829.04 = 2,142.08/x
  3. Step 3: Cross multiply
    5,217.92x = 7,829.04 × 2,142.08
  4. Step 4: Simplify right side
    5,217.92x = 16,770,430.00
  5. Step 5: Solve for x
    x = 16,770,430.00/5,217.92
  6. Step 6: Final answer
    x = 3,214.01

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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.