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Finding the Fourth Proportional to 1,895.20, 2,843.00 and 799.42

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Solution

The fourth proportional to 1,895.20, 2,843.00 and 799.42 is: 1,199.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,895.20 : 2,843.00 = 799.42 : x
  2. Step 2: Convert to fraction form
    1,895.20/2,843.00 = 799.42/x
  3. Step 3: Cross multiply
    1,895.20x = 2,843.00 × 799.42
  4. Step 4: Simplify right side
    1,895.20x = 2,272,748.28
  5. Step 5: Solve for x
    x = 2,272,748.28/1,895.20
  6. Step 6: Final answer
    x = 1,199.21

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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.