Home / 6,874.25-9,485.83-3,889.60

Finding the Fourth Proportional to 6,874.25, 9,485.83 and 3,889.60

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Solution

The fourth proportional to 6,874.25, 9,485.83 and 3,889.60 is: 5,367.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,874.25 : 9,485.83 = 3,889.60 : x
  2. Step 2: Convert to fraction form
    6,874.25/9,485.83 = 3,889.60/x
  3. Step 3: Cross multiply
    6,874.25x = 9,485.83 × 3,889.60
  4. Step 4: Simplify right side
    6,874.25x = 36,896,129.81
  5. Step 5: Solve for x
    x = 36,896,129.81/6,874.25
  6. Step 6: Final answer
    x = 5,367.29

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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.