Home / 4,991.22-7,480.31-3,609.18

Finding the Fourth Proportional to 4,991.22, 7,480.31 and 3,609.18

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Solution

The fourth proportional to 4,991.22, 7,480.31 and 3,609.18 is: 5,409.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,991.22 : 7,480.31 = 3,609.18 : x
  2. Step 2: Convert to fraction form
    4,991.22/7,480.31 = 3,609.18/x
  3. Step 3: Cross multiply
    4,991.22x = 7,480.31 × 3,609.18
  4. Step 4: Simplify right side
    4,991.22x = 26,997,767.20
  5. Step 5: Solve for x
    x = 26,997,767.20/4,991.22
  6. Step 6: Final answer
    x = 5,409.05

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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.