Home / 6,812.24-9,402-3,829.28

Finding the Fourth Proportional to 6,812.24, 9,402 and 3,829.28

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Solution

The fourth proportional to 6,812.24, 9,402 and 3,829.28 is: 5,285.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,812.24 : 9,402 = 3,829.28 : x
  2. Step 2: Convert to fraction form
    6,812.24/9,402 = 3,829.28/x
  3. Step 3: Cross multiply
    6,812.24x = 9,402 × 3,829.28
  4. Step 4: Simplify right side
    6,812.24x = 36,002,890.56
  5. Step 5: Solve for x
    x = 36,002,890.56/6,812.24
  6. Step 6: Final answer
    x = 5,285.03

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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.