Home / 3,618.48-4,993.20-2,220.96

Finding the Fourth Proportional to 3,618.48, 4,993.20 and 2,220.96

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Solution

The fourth proportional to 3,618.48, 4,993.20 and 2,220.96 is: 3,064.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.48 : 4,993.20 = 2,220.96 : x
  2. Step 2: Convert to fraction form
    3,618.48/4,993.20 = 2,220.96/x
  3. Step 3: Cross multiply
    3,618.48x = 4,993.20 × 2,220.96
  4. Step 4: Simplify right side
    3,618.48x = 11,089,697.47
  5. Step 5: Solve for x
    x = 11,089,697.47/3,618.48
  6. Step 6: Final answer
    x = 3,064.74

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1.5x scale

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.