Home / 5,485.60-8,231.10-4,168.90

Finding the Fourth Proportional to 5,485.60, 8,231.10 and 4,168.90

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Solution

The fourth proportional to 5,485.60, 8,231.10 and 4,168.90 is: 6,255.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,485.60 : 8,231.10 = 4,168.90 : x
  2. Step 2: Convert to fraction form
    5,485.60/8,231.10 = 4,168.90/x
  3. Step 3: Cross multiply
    5,485.60x = 8,231.10 × 4,168.90
  4. Step 4: Simplify right side
    5,485.60x = 34,314,632.79
  5. Step 5: Solve for x
    x = 34,314,632.79/5,485.60
  6. Step 6: Final answer
    x = 6,255.40

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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.