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Finding the Fourth Proportional to 6,602.77, 9,890.38 and 3,961.90

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Solution

The fourth proportional to 6,602.77, 9,890.38 and 3,961.90 is: 5,934.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,602.77 : 9,890.38 = 3,961.90 : x
  2. Step 2: Convert to fraction form
    6,602.77/9,890.38 = 3,961.90/x
  3. Step 3: Cross multiply
    6,602.77x = 9,890.38 × 3,961.90
  4. Step 4: Simplify right side
    6,602.77x = 39,184,696.52
  5. Step 5: Solve for x
    x = 39,184,696.52/6,602.77
  6. Step 6: Final answer
    x = 5,934.58

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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.