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Finding the Fourth Proportional to 1,850.74, 2,778.72 and 1,817.92

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Solution

The fourth proportional to 1,850.74, 2,778.72 and 1,817.92 is: 2,729.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,850.74 : 2,778.72 = 1,817.92 : x
  2. Step 2: Convert to fraction form
    1,850.74/2,778.72 = 1,817.92/x
  3. Step 3: Cross multiply
    1,850.74x = 2,778.72 × 1,817.92
  4. Step 4: Simplify right side
    1,850.74x = 5,051,490.66
  5. Step 5: Solve for x
    x = 5,051,490.66/1,850.74
  6. Step 6: Final answer
    x = 2,729.44

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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.