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Finding the Fourth Proportional to 2,968.84, 4,097.16 and 1,642.54

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Solution

The fourth proportional to 2,968.84, 4,097.16 and 1,642.54 is: 2,266.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,968.84 : 4,097.16 = 1,642.54 : x
  2. Step 2: Convert to fraction form
    2,968.84/4,097.16 = 1,642.54/x
  3. Step 3: Cross multiply
    2,968.84x = 4,097.16 × 1,642.54
  4. Step 4: Simplify right side
    2,968.84x = 6,729,749.19
  5. Step 5: Solve for x
    x = 6,729,749.19/2,968.84
  6. Step 6: Final answer
    x = 2,266.79

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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.