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Finding the Fourth Proportional to 2,752.90, 3,800.73 and 1,969.54

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Solution

The fourth proportional to 2,752.90, 3,800.73 and 1,969.54 is: 2,719.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,752.90 : 3,800.73 = 1,969.54 : x
  2. Step 2: Convert to fraction form
    2,752.90/3,800.73 = 1,969.54/x
  3. Step 3: Cross multiply
    2,752.90x = 3,800.73 × 1,969.54
  4. Step 4: Simplify right side
    2,752.90x = 7,485,689.76
  5. Step 5: Solve for x
    x = 7,485,689.76/2,752.90
  6. Step 6: Final answer
    x = 2,719.20

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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.