Home / 3,835.23-5,289.34-3,240.64

Finding the Fourth Proportional to 3,835.23, 5,289.34 and 3,240.64

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Solution

The fourth proportional to 3,835.23, 5,289.34 and 3,240.64 is: 4,469.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,835.23 : 5,289.34 = 3,240.64 : x
  2. Step 2: Convert to fraction form
    3,835.23/5,289.34 = 3,240.64/x
  3. Step 3: Cross multiply
    3,835.23x = 5,289.34 × 3,240.64
  4. Step 4: Simplify right side
    3,835.23x = 17,140,846.78
  5. Step 5: Solve for x
    x = 17,140,846.78/3,835.23
  6. Step 6: Final answer
    x = 4,469.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.