Home / 7,897.14-11,843.91-3,220.38

Finding the Fourth Proportional to 7,897.14, 11,843.91 and 3,220.38

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Solution

The fourth proportional to 7,897.14, 11,843.91 and 3,220.38 is: 4,829.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,897.14 : 11,843.91 = 3,220.38 : x
  2. Step 2: Convert to fraction form
    7,897.14/11,843.91 = 3,220.38/x
  3. Step 3: Cross multiply
    7,897.14x = 11,843.91 × 3,220.38
  4. Step 4: Simplify right side
    7,897.14x = 38,141,890.89
  5. Step 5: Solve for x
    x = 38,141,890.89/7,897.14
  6. Step 6: Final answer
    x = 4,829.84

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1.5x scale

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.