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Finding the Fourth Proportional to 3,651.22, 5,038.68 and 1,995.22

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Solution

The fourth proportional to 3,651.22, 5,038.68 and 1,995.22 is: 2,753.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,651.22 : 5,038.68 = 1,995.22 : x
  2. Step 2: Convert to fraction form
    3,651.22/5,038.68 = 1,995.22/x
  3. Step 3: Cross multiply
    3,651.22x = 5,038.68 × 1,995.22
  4. Step 4: Simplify right side
    3,651.22x = 10,053,275.11
  5. Step 5: Solve for x
    x = 10,053,275.11/3,651.22
  6. Step 6: Final answer
    x = 2,753.40

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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.