Home / 7,690.74-11,529.85-3,245.53

Finding the Fourth Proportional to 7,690.74, 11,529.85 and 3,245.53

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Solution

The fourth proportional to 7,690.74, 11,529.85 and 3,245.53 is: 4,865.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,690.74 : 11,529.85 = 3,245.53 : x
  2. Step 2: Convert to fraction form
    7,690.74/11,529.85 = 3,245.53/x
  3. Step 3: Cross multiply
    7,690.74x = 11,529.85 × 3,245.53
  4. Step 4: Simplify right side
    7,690.74x = 37,420,474.07
  5. Step 5: Solve for x
    x = 37,420,474.07/7,690.74
  6. Step 6: Final answer
    x = 4,865.65

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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.