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Finding the Fourth Proportional to 1,900.88, 2,850.36 and 746

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Solution

The fourth proportional to 1,900.88, 2,850.36 and 746 is: 1,118.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,900.88 : 2,850.36 = 746 : x
  2. Step 2: Convert to fraction form
    1,900.88/2,850.36 = 746/x
  3. Step 3: Cross multiply
    1,900.88x = 2,850.36 × 746
  4. Step 4: Simplify right side
    1,900.88x = 2,126,368.56
  5. Step 5: Solve for x
    x = 2,126,368.56/1,900.88
  6. Step 6: Final answer
    x = 1,118.62

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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.