Home / 7,669.40-11,504.32-2,122.79

Finding the Fourth Proportional to 7,669.40, 11,504.32 and 2,122.79

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Solution

The fourth proportional to 7,669.40, 11,504.32 and 2,122.79 is: 3,184.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,669.40 : 11,504.32 = 2,122.79 : x
  2. Step 2: Convert to fraction form
    7,669.40/11,504.32 = 2,122.79/x
  3. Step 3: Cross multiply
    7,669.40x = 11,504.32 × 2,122.79
  4. Step 4: Simplify right side
    7,669.40x = 24,421,255.45
  5. Step 5: Solve for x
    x = 24,421,255.45/7,669.40
  6. Step 6: Final answer
    x = 3,184.25

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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.