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Finding the Fourth Proportional to 3,622.25, 4,998.71 and 1,966.25

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Solution

The fourth proportional to 3,622.25, 4,998.71 and 1,966.25 is: 2,713.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,622.25 : 4,998.71 = 1,966.25 : x
  2. Step 2: Convert to fraction form
    3,622.25/4,998.71 = 1,966.25/x
  3. Step 3: Cross multiply
    3,622.25x = 4,998.71 × 1,966.25
  4. Step 4: Simplify right side
    3,622.25x = 9,828,713.54
  5. Step 5: Solve for x
    x = 9,828,713.54/3,622.25
  6. Step 6: Final answer
    x = 2,713.43

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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.