Home / 7,897.21-11,844.54-2,635.90

Finding the Fourth Proportional to 7,897.21, 11,844.54 and 2,635.90

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Solution

The fourth proportional to 7,897.21, 11,844.54 and 2,635.90 is: 3,953.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,897.21 : 11,844.54 = 2,635.90 : x
  2. Step 2: Convert to fraction form
    7,897.21/11,844.54 = 2,635.90/x
  3. Step 3: Cross multiply
    7,897.21x = 11,844.54 × 2,635.90
  4. Step 4: Simplify right side
    7,897.21x = 31,221,022.99
  5. Step 5: Solve for x
    x = 31,221,022.99/7,897.21
  6. Step 6: Final answer
    x = 3,953.42

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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.