Home / 5,409.27-8,115.30-2,290.77

Finding the Fourth Proportional to 5,409.27, 8,115.30 and 2,290.77

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Solution

The fourth proportional to 5,409.27, 8,115.30 and 2,290.77 is: 3,436.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,409.27 : 8,115.30 = 2,290.77 : x
  2. Step 2: Convert to fraction form
    5,409.27/8,115.30 = 2,290.77/x
  3. Step 3: Cross multiply
    5,409.27x = 8,115.30 × 2,290.77
  4. Step 4: Simplify right side
    5,409.27x = 18,590,285.78
  5. Step 5: Solve for x
    x = 18,590,285.78/5,409.27
  6. Step 6: Final answer
    x = 3,436.75

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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.