Home / 7,737.89-11,605.55-2,189.86

Finding the Fourth Proportional to 7,737.89, 11,605.55 and 2,189.86

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Solution

The fourth proportional to 7,737.89, 11,605.55 and 2,189.86 is: 3,284.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,737.89 : 11,605.55 = 2,189.86 : x
  2. Step 2: Convert to fraction form
    7,737.89/11,605.55 = 2,189.86/x
  3. Step 3: Cross multiply
    7,737.89x = 11,605.55 × 2,189.86
  4. Step 4: Simplify right side
    7,737.89x = 25,414,529.72
  5. Step 5: Solve for x
    x = 25,414,529.72/7,737.89
  6. Step 6: Final answer
    x = 3,284.43

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1.5x scale

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.