Home / 4,399.20-6,605.64-3,789.72

Finding the Fourth Proportional to 4,399.20, 6,605.64 and 3,789.72

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Solution

The fourth proportional to 4,399.20, 6,605.64 and 3,789.72 is: 5,690.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,399.20 : 6,605.64 = 3,789.72 : x
  2. Step 2: Convert to fraction form
    4,399.20/6,605.64 = 3,789.72/x
  3. Step 3: Cross multiply
    4,399.20x = 6,605.64 × 3,789.72
  4. Step 4: Simplify right side
    4,399.20x = 25,033,526.02
  5. Step 5: Solve for x
    x = 25,033,526.02/4,399.20
  6. Step 6: Final answer
    x = 5,690.47

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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.