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Finding the Fourth Proportional to 3,619.80, 4,995.18 and 2,048.22

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Solution

The fourth proportional to 3,619.80, 4,995.18 and 2,048.22 is: 2,826.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.80 : 4,995.18 = 2,048.22 : x
  2. Step 2: Convert to fraction form
    3,619.80/4,995.18 = 2,048.22/x
  3. Step 3: Cross multiply
    3,619.80x = 4,995.18 × 2,048.22
  4. Step 4: Simplify right side
    3,619.80x = 10,231,227.58
  5. Step 5: Solve for x
    x = 10,231,227.58/3,619.80
  6. Step 6: Final answer
    x = 2,826.46

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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.