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Finding the Fourth Proportional to 6,859.74, 10,291.04 and 3,899.54

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Solution

The fourth proportional to 6,859.74, 10,291.04 and 3,899.54 is: 5,850.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,859.74 : 10,291.04 = 3,899.54 : x
  2. Step 2: Convert to fraction form
    6,859.74/10,291.04 = 3,899.54/x
  3. Step 3: Cross multiply
    6,859.74x = 10,291.04 × 3,899.54
  4. Step 4: Simplify right side
    6,859.74x = 40,130,353.94
  5. Step 5: Solve for x
    x = 40,130,353.94/6,859.74
  6. Step 6: Final answer
    x = 5,850.13

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1.5x scale

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.