Home / 5,409.42-8,114.10-2,120.19

Finding the Fourth Proportional to 5,409.42, 8,114.10 and 2,120.19

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Solution

The fourth proportional to 5,409.42, 8,114.10 and 2,120.19 is: 3,180.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,409.42 : 8,114.10 = 2,120.19 : x
  2. Step 2: Convert to fraction form
    5,409.42/8,114.10 = 2,120.19/x
  3. Step 3: Cross multiply
    5,409.42x = 8,114.10 × 2,120.19
  4. Step 4: Simplify right side
    5,409.42x = 17,203,433.68
  5. Step 5: Solve for x
    x = 17,203,433.68/5,409.42
  6. Step 6: Final answer
    x = 3,180.27

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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.