Home / 7,766.22-11,647.38-2,219.60

Finding the Fourth Proportional to 7,766.22, 11,647.38 and 2,219.60

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Solution

The fourth proportional to 7,766.22, 11,647.38 and 2,219.60 is: 3,328.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,766.22 : 11,647.38 = 2,219.60 : x
  2. Step 2: Convert to fraction form
    7,766.22/11,647.38 = 2,219.60/x
  3. Step 3: Cross multiply
    7,766.22x = 11,647.38 × 2,219.60
  4. Step 4: Simplify right side
    7,766.22x = 25,852,466.41
  5. Step 5: Solve for x
    x = 25,852,466.41/7,766.22
  6. Step 6: Final answer
    x = 3,328.84

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1.5x scale

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.