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Finding the Fourth Proportional to 2,676, 3,693.12 and 1,497.28

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Solution

The fourth proportional to 2,676, 3,693.12 and 1,497.28 is: 2,066.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,676 : 3,693.12 = 1,497.28 : x
  2. Step 2: Convert to fraction form
    2,676/3,693.12 = 1,497.28/x
  3. Step 3: Cross multiply
    2,676x = 3,693.12 × 1,497.28
  4. Step 4: Simplify right side
    2,676x = 5,529,634.71
  5. Step 5: Solve for x
    x = 5,529,634.71/2,676
  6. Step 6: Final answer
    x = 2,066.38

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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.