Home / 5,485.34-8,231.15-5,440.75

Finding the Fourth Proportional to 5,485.34, 8,231.15 and 5,440.75

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Solution

The fourth proportional to 5,485.34, 8,231.15 and 5,440.75 is: 8,164.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,485.34 : 8,231.15 = 5,440.75 : x
  2. Step 2: Convert to fraction form
    5,485.34/8,231.15 = 5,440.75/x
  3. Step 3: Cross multiply
    5,485.34x = 8,231.15 × 5,440.75
  4. Step 4: Simplify right side
    5,485.34x = 44,783,622.39
  5. Step 5: Solve for x
    x = 44,783,622.39/5,485.34
  6. Step 6: Final answer
    x = 8,164.23

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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.