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Finding the Fourth Proportional to 2,807.73, 3,874.94 and 1,549.02

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Solution

The fourth proportional to 2,807.73, 3,874.94 and 1,549.02 is: 2,137.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,807.73 : 3,874.94 = 1,549.02 : x
  2. Step 2: Convert to fraction form
    2,807.73/3,874.94 = 1,549.02/x
  3. Step 3: Cross multiply
    2,807.73x = 3,874.94 × 1,549.02
  4. Step 4: Simplify right side
    2,807.73x = 6,002,372.15
  5. Step 5: Solve for x
    x = 6,002,372.15/2,807.73
  6. Step 6: Final answer
    x = 2,137.80

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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.