Home / 5,537.20-8,289.60-3,690.40

Finding the Fourth Proportional to 5,537.20, 8,289.60 and 3,690.40

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Solution

The fourth proportional to 5,537.20, 8,289.60 and 3,690.40 is: 5,524.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,537.20 : 8,289.60 = 3,690.40 : x
  2. Step 2: Convert to fraction form
    5,537.20/8,289.60 = 3,690.40/x
  3. Step 3: Cross multiply
    5,537.20x = 8,289.60 × 3,690.40
  4. Step 4: Simplify right side
    5,537.20x = 30,591,939.84
  5. Step 5: Solve for x
    x = 30,591,939.84/5,537.20
  6. Step 6: Final answer
    x = 5,524.80

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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.