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Finding the Fourth Proportional to 6,465.59, 9,699.60 and 2,081.87

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Solution

The fourth proportional to 6,465.59, 9,699.60 and 2,081.87 is: 3,123.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,465.59 : 9,699.60 = 2,081.87 : x
  2. Step 2: Convert to fraction form
    6,465.59/9,699.60 = 2,081.87/x
  3. Step 3: Cross multiply
    6,465.59x = 9,699.60 × 2,081.87
  4. Step 4: Simplify right side
    6,465.59x = 20,193,257.75
  5. Step 5: Solve for x
    x = 20,193,257.75/6,465.59
  6. Step 6: Final answer
    x = 3,123.19

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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.