Home / 7,788.44-10,748.66-4,431.40

Finding the Fourth Proportional to 7,788.44, 10,748.66 and 4,431.40

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Solution

The fourth proportional to 7,788.44, 10,748.66 and 4,431.40 is: 6,115.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,788.44 : 10,748.66 = 4,431.40 : x
  2. Step 2: Convert to fraction form
    7,788.44/10,748.66 = 4,431.40/x
  3. Step 3: Cross multiply
    7,788.44x = 10,748.66 × 4,431.40
  4. Step 4: Simplify right side
    7,788.44x = 47,631,611.92
  5. Step 5: Solve for x
    x = 47,631,611.92/7,788.44
  6. Step 6: Final answer
    x = 6,115.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.