Home / 2,146.88-3,220.08-607.84

Finding the Fourth Proportional to 2,146.88, 3,220.08 and 607.84

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Solution

The fourth proportional to 2,146.88, 3,220.08 and 607.84 is: 911.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,146.88 : 3,220.08 = 607.84 : x
  2. Step 2: Convert to fraction form
    2,146.88/3,220.08 = 607.84/x
  3. Step 3: Cross multiply
    2,146.88x = 3,220.08 × 607.84
  4. Step 4: Simplify right side
    2,146.88x = 1,957,293.43
  5. Step 5: Solve for x
    x = 1,957,293.43/2,146.88
  6. Step 6: Final answer
    x = 911.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.