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Finding the Fourth Proportional to 4,986.06, 7,479.08 and 3,891.34

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Solution

The fourth proportional to 4,986.06, 7,479.08 and 3,891.34 is: 5,837.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,986.06 : 7,479.08 = 3,891.34 : x
  2. Step 2: Convert to fraction form
    4,986.06/7,479.08 = 3,891.34/x
  3. Step 3: Cross multiply
    4,986.06x = 7,479.08 × 3,891.34
  4. Step 4: Simplify right side
    4,986.06x = 29,103,669.54
  5. Step 5: Solve for x
    x = 29,103,669.54/4,986.06
  6. Step 6: Final answer
    x = 5,837.01

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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.