Home / 3,192.46-4,788.55-1,318.30

Finding the Fourth Proportional to 3,192.46, 4,788.55 and 1,318.30

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Solution

The fourth proportional to 3,192.46, 4,788.55 and 1,318.30 is: 1,977.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,192.46 : 4,788.55 = 1,318.30 : x
  2. Step 2: Convert to fraction form
    3,192.46/4,788.55 = 1,318.30/x
  3. Step 3: Cross multiply
    3,192.46x = 4,788.55 × 1,318.30
  4. Step 4: Simplify right side
    3,192.46x = 6,312,745.47
  5. Step 5: Solve for x
    x = 6,312,745.47/3,192.46
  6. Step 6: Final answer
    x = 1,977.39

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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.