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Finding the Fourth Proportional to 6,986.08, 9,641.04 and 3,842.56

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Solution

The fourth proportional to 6,986.08, 9,641.04 and 3,842.56 is: 5,302.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,986.08 : 9,641.04 = 3,842.56 : x
  2. Step 2: Convert to fraction form
    6,986.08/9,641.04 = 3,842.56/x
  3. Step 3: Cross multiply
    6,986.08x = 9,641.04 × 3,842.56
  4. Step 4: Simplify right side
    6,986.08x = 37,046,274.66
  5. Step 5: Solve for x
    x = 37,046,274.66/6,986.08
  6. Step 6: Final answer
    x = 5,302.87

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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.