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Finding the Fourth Proportional to 1,767, 2,650.50 and 741

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Solution

The fourth proportional to 1,767, 2,650.50 and 741 is: 1,111.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,767 : 2,650.50 = 741 : x
  2. Step 2: Convert to fraction form
    1,767/2,650.50 = 741/x
  3. Step 3: Cross multiply
    1,767x = 2,650.50 × 741
  4. Step 4: Simplify right side
    1,767x = 1,964,020.50
  5. Step 5: Solve for x
    x = 1,964,020.50/1,767
  6. Step 6: Final answer
    x = 1,111.50

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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.