Home / 5,239.12-7,861.35-3,485.35

Finding the Fourth Proportional to 5,239.12, 7,861.35 and 3,485.35

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Solution

The fourth proportional to 5,239.12, 7,861.35 and 3,485.35 is: 5,229.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,239.12 : 7,861.35 = 3,485.35 : x
  2. Step 2: Convert to fraction form
    5,239.12/7,861.35 = 3,485.35/x
  3. Step 3: Cross multiply
    5,239.12x = 7,861.35 × 3,485.35
  4. Step 4: Simplify right side
    5,239.12x = 27,399,556.22
  5. Step 5: Solve for x
    x = 27,399,556.22/5,239.12
  6. Step 6: Final answer
    x = 5,229.80

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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.