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Finding the Fourth Proportional to 7,801, 11,697.85 and 2,603.23

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Solution

The fourth proportional to 7,801, 11,697.85 and 2,603.23 is: 3,903.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,801 : 11,697.85 = 2,603.23 : x
  2. Step 2: Convert to fraction form
    7,801/11,697.85 = 2,603.23/x
  3. Step 3: Cross multiply
    7,801x = 11,697.85 × 2,603.23
  4. Step 4: Simplify right side
    7,801x = 30,452,194.06
  5. Step 5: Solve for x
    x = 30,452,194.06/7,801
  6. Step 6: Final answer
    x = 3,903.63

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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.