Home / 1,968.56-2,716.08-1,171.68

Finding the Fourth Proportional to 1,968.56, 2,716.08 and 1,171.68

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Solution

The fourth proportional to 1,968.56, 2,716.08 and 1,171.68 is: 1,616.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,968.56 : 2,716.08 = 1,171.68 : x
  2. Step 2: Convert to fraction form
    1,968.56/2,716.08 = 1,171.68/x
  3. Step 3: Cross multiply
    1,968.56x = 2,716.08 × 1,171.68
  4. Step 4: Simplify right side
    1,968.56x = 3,182,376.61
  5. Step 5: Solve for x
    x = 3,182,376.61/1,968.56
  6. Step 6: Final answer
    x = 1,616.60

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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.