Home / 7,815.29-11,720.48-2,269.01

Finding the Fourth Proportional to 7,815.29, 11,720.48 and 2,269.01

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Solution

The fourth proportional to 7,815.29, 11,720.48 and 2,269.01 is: 3,402.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,815.29 : 11,720.48 = 2,269.01 : x
  2. Step 2: Convert to fraction form
    7,815.29/11,720.48 = 2,269.01/x
  3. Step 3: Cross multiply
    7,815.29x = 11,720.48 × 2,269.01
  4. Step 4: Simplify right side
    7,815.29x = 26,593,874.98
  5. Step 5: Solve for x
    x = 26,593,874.98/7,815.29
  6. Step 6: Final answer
    x = 3,402.80

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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.