Home / 3,192.15-4,788.71-1,631.31

Finding the Fourth Proportional to 3,192.15, 4,788.71 and 1,631.31

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Solution

The fourth proportional to 3,192.15, 4,788.71 and 1,631.31 is: 2,447.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,192.15 : 4,788.71 = 1,631.31 : x
  2. Step 2: Convert to fraction form
    3,192.15/4,788.71 = 1,631.31/x
  3. Step 3: Cross multiply
    3,192.15x = 4,788.71 × 1,631.31
  4. Step 4: Simplify right side
    3,192.15x = 7,811,862.35
  5. Step 5: Solve for x
    x = 7,811,862.35/3,192.15
  6. Step 6: Final answer
    x = 2,447.21

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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.