Home / 3,150.32-4,728.12-2,786

Finding the Fourth Proportional to 3,150.32, 4,728.12 and 2,786

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Solution

The fourth proportional to 3,150.32, 4,728.12 and 2,786 is: 4,181.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,150.32 : 4,728.12 = 2,786 : x
  2. Step 2: Convert to fraction form
    3,150.32/4,728.12 = 2,786/x
  3. Step 3: Cross multiply
    3,150.32x = 4,728.12 × 2,786
  4. Step 4: Simplify right side
    3,150.32x = 13,172,542.32
  5. Step 5: Solve for x
    x = 13,172,542.32/3,150.32
  6. Step 6: Final answer
    x = 4,181.33

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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.