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Finding the Fourth Proportional to 1,397.73, 2,096.07 and 410.22

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Solution

The fourth proportional to 1,397.73, 2,096.07 and 410.22 is: 615.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397.73 : 2,096.07 = 410.22 : x
  2. Step 2: Convert to fraction form
    1,397.73/2,096.07 = 410.22/x
  3. Step 3: Cross multiply
    1,397.73x = 2,096.07 × 410.22
  4. Step 4: Simplify right side
    1,397.73x = 859,849.84
  5. Step 5: Solve for x
    x = 859,849.84/1,397.73
  6. Step 6: Final answer
    x = 615.18

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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.