Home / 4,949.16-7,427.34-3,986.88

Finding the Fourth Proportional to 4,949.16, 7,427.34 and 3,986.88

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Solution

The fourth proportional to 4,949.16, 7,427.34 and 3,986.88 is: 5,983.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,949.16 : 7,427.34 = 3,986.88 : x
  2. Step 2: Convert to fraction form
    4,949.16/7,427.34 = 3,986.88/x
  3. Step 3: Cross multiply
    4,949.16x = 7,427.34 × 3,986.88
  4. Step 4: Simplify right side
    4,949.16x = 29,611,913.30
  5. Step 5: Solve for x
    x = 29,611,913.30/4,949.16
  6. Step 6: Final answer
    x = 5,983.22

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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.