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Finding the Fourth Proportional to 1,774.47, 2,661.72 and 799.44

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Solution

The fourth proportional to 1,774.47, 2,661.72 and 799.44 is: 1,199.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,774.47 : 2,661.72 = 799.44 : x
  2. Step 2: Convert to fraction form
    1,774.47/2,661.72 = 799.44/x
  3. Step 3: Cross multiply
    1,774.47x = 2,661.72 × 799.44
  4. Step 4: Simplify right side
    1,774.47x = 2,127,885.44
  5. Step 5: Solve for x
    x = 2,127,885.44/1,774.47
  6. Step 6: Final answer
    x = 1,199.17

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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.