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Finding the Fourth Proportional to 6,826.28, 9,420.69 and 3,842.38

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Solution

The fourth proportional to 6,826.28, 9,420.69 and 3,842.38 is: 5,302.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,826.28 : 9,420.69 = 3,842.38 : x
  2. Step 2: Convert to fraction form
    6,826.28/9,420.69 = 3,842.38/x
  3. Step 3: Cross multiply
    6,826.28x = 9,420.69 × 3,842.38
  4. Step 4: Simplify right side
    6,826.28x = 36,197,897.03
  5. Step 5: Solve for x
    x = 36,197,897.03/6,826.28
  6. Step 6: Final answer
    x = 5,302.73

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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.