Home / 3,158.12-4,734.94-1,309.16

Finding the Fourth Proportional to 3,158.12, 4,734.94 and 1,309.16

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Solution

The fourth proportional to 3,158.12, 4,734.94 and 1,309.16 is: 1,962.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,158.12 : 4,734.94 = 1,309.16 : x
  2. Step 2: Convert to fraction form
    3,158.12/4,734.94 = 1,309.16/x
  3. Step 3: Cross multiply
    3,158.12x = 4,734.94 × 1,309.16
  4. Step 4: Simplify right side
    3,158.12x = 6,198,794.05
  5. Step 5: Solve for x
    x = 6,198,794.05/3,158.12
  6. Step 6: Final answer
    x = 1,962.81

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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.