Home / 1,962.67-2,708.58-1,217.02

Finding the Fourth Proportional to 1,962.67, 2,708.58 and 1,217.02

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Solution

The fourth proportional to 1,962.67, 2,708.58 and 1,217.02 is: 1,679.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,962.67 : 2,708.58 = 1,217.02 : x
  2. Step 2: Convert to fraction form
    1,962.67/2,708.58 = 1,217.02/x
  3. Step 3: Cross multiply
    1,962.67x = 2,708.58 × 1,217.02
  4. Step 4: Simplify right side
    1,962.67x = 3,296,396.03
  5. Step 5: Solve for x
    x = 3,296,396.03/1,962.67
  6. Step 6: Final answer
    x = 1,679.55

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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.