Home / 5,450.10-8,170.29-2,161.50

Finding the Fourth Proportional to 5,450.10, 8,170.29 and 2,161.50

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Solution

The fourth proportional to 5,450.10, 8,170.29 and 2,161.50 is: 3,240.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,450.10 : 8,170.29 = 2,161.50 : x
  2. Step 2: Convert to fraction form
    5,450.10/8,170.29 = 2,161.50/x
  3. Step 3: Cross multiply
    5,450.10x = 8,170.29 × 2,161.50
  4. Step 4: Simplify right side
    5,450.10x = 17,660,081.84
  5. Step 5: Solve for x
    x = 17,660,081.84/5,450.10
  6. Step 6: Final answer
    x = 3,240.32

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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.