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Finding the Fourth Proportional to 2,794.85, 3,856.11 and 1,800.48

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Solution

The fourth proportional to 2,794.85, 3,856.11 and 1,800.48 is: 2,484.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,794.85 : 3,856.11 = 1,800.48 : x
  2. Step 2: Convert to fraction form
    2,794.85/3,856.11 = 1,800.48/x
  3. Step 3: Cross multiply
    2,794.85x = 3,856.11 × 1,800.48
  4. Step 4: Simplify right side
    2,794.85x = 6,942,834.95
  5. Step 5: Solve for x
    x = 6,942,834.95/2,794.85
  6. Step 6: Final answer
    x = 2,484.15

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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.