Home / 3,156.15-4,736.30-1,208.36

Finding the Fourth Proportional to 3,156.15, 4,736.30 and 1,208.36

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Solution

The fourth proportional to 3,156.15, 4,736.30 and 1,208.36 is: 1,813.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156.15 : 4,736.30 = 1,208.36 : x
  2. Step 2: Convert to fraction form
    3,156.15/4,736.30 = 1,208.36/x
  3. Step 3: Cross multiply
    3,156.15x = 4,736.30 × 1,208.36
  4. Step 4: Simplify right side
    3,156.15x = 5,723,131.36
  5. Step 5: Solve for x
    x = 5,723,131.36/3,156.15
  6. Step 6: Final answer
    x = 1,813.33

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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.