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Finding the Fourth Proportional to 7,741.87, 11,612.84 and 1,898.48

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Solution

The fourth proportional to 7,741.87, 11,612.84 and 1,898.48 is: 2,847.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,741.87 : 11,612.84 = 1,898.48 : x
  2. Step 2: Convert to fraction form
    7,741.87/11,612.84 = 1,898.48/x
  3. Step 3: Cross multiply
    7,741.87x = 11,612.84 × 1,898.48
  4. Step 4: Simplify right side
    7,741.87x = 22,046,764.02
  5. Step 5: Solve for x
    x = 22,046,764.02/7,741.87
  6. Step 6: Final answer
    x = 2,847.73

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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.