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Finding the Fourth Proportional to 2,778.87, 3,835.18 and 1,599.92

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Solution

The fourth proportional to 2,778.87, 3,835.18 and 1,599.92 is: 2,208.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778.87 : 3,835.18 = 1,599.92 : x
  2. Step 2: Convert to fraction form
    2,778.87/3,835.18 = 1,599.92/x
  3. Step 3: Cross multiply
    2,778.87x = 3,835.18 × 1,599.92
  4. Step 4: Simplify right side
    2,778.87x = 6,135,981.19
  5. Step 5: Solve for x
    x = 6,135,981.19/2,778.87
  6. Step 6: Final answer
    x = 2,208.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.