Home / 3,231.24-4,842.90-1,380.19

Finding the Fourth Proportional to 3,231.24, 4,842.90 and 1,380.19

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Solution

The fourth proportional to 3,231.24, 4,842.90 and 1,380.19 is: 2,068.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,231.24 : 4,842.90 = 1,380.19 : x
  2. Step 2: Convert to fraction form
    3,231.24/4,842.90 = 1,380.19/x
  3. Step 3: Cross multiply
    3,231.24x = 4,842.90 × 1,380.19
  4. Step 4: Simplify right side
    3,231.24x = 6,684,122.15
  5. Step 5: Solve for x
    x = 6,684,122.15/3,231.24
  6. Step 6: Final answer
    x = 2,068.59

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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.