Home / 7,738.24-11,600.88-3,118

Finding the Fourth Proportional to 7,738.24, 11,600.88 and 3,118

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Solution

The fourth proportional to 7,738.24, 11,600.88 and 3,118 is: 4,674.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,738.24 : 11,600.88 = 3,118 : x
  2. Step 2: Convert to fraction form
    7,738.24/11,600.88 = 3,118/x
  3. Step 3: Cross multiply
    7,738.24x = 11,600.88 × 3,118
  4. Step 4: Simplify right side
    7,738.24x = 36,171,543.84
  5. Step 5: Solve for x
    x = 36,171,543.84/7,738.24
  6. Step 6: Final answer
    x = 4,674.39

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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.