Home / 6,620.44-9,136.50-3,788.70

Finding the Fourth Proportional to 6,620.44, 9,136.50 and 3,788.70

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Solution

The fourth proportional to 6,620.44, 9,136.50 and 3,788.70 is: 5,228.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,620.44 : 9,136.50 = 3,788.70 : x
  2. Step 2: Convert to fraction form
    6,620.44/9,136.50 = 3,788.70/x
  3. Step 3: Cross multiply
    6,620.44x = 9,136.50 × 3,788.70
  4. Step 4: Simplify right side
    6,620.44x = 34,615,477.60
  5. Step 5: Solve for x
    x = 34,615,477.60/6,620.44
  6. Step 6: Final answer
    x = 5,228.58

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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.