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Finding the Fourth Proportional to 3,842.92, 5,763.16 and 1,245.24

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Solution

The fourth proportional to 3,842.92, 5,763.16 and 1,245.24 is: 1,867.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,842.92 : 5,763.16 = 1,245.24 : x
  2. Step 2: Convert to fraction form
    3,842.92/5,763.16 = 1,245.24/x
  3. Step 3: Cross multiply
    3,842.92x = 5,763.16 × 1,245.24
  4. Step 4: Simplify right side
    3,842.92x = 7,176,517.36
  5. Step 5: Solve for x
    x = 7,176,517.36/3,842.92
  6. Step 6: Final answer
    x = 1,867.46

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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.