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Finding the Fourth Proportional to 3,090.62, 4,265.07 and 1,693.38

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Solution

The fourth proportional to 3,090.62, 4,265.07 and 1,693.38 is: 2,336.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.62 : 4,265.07 = 1,693.38 : x
  2. Step 2: Convert to fraction form
    3,090.62/4,265.07 = 1,693.38/x
  3. Step 3: Cross multiply
    3,090.62x = 4,265.07 × 1,693.38
  4. Step 4: Simplify right side
    3,090.62x = 7,222,384.24
  5. Step 5: Solve for x
    x = 7,222,384.24/3,090.62
  6. Step 6: Final answer
    x = 2,336.87

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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.