Home / 6,261.36-8,640.90-4,272.84

Finding the Fourth Proportional to 6,261.36, 8,640.90 and 4,272.84

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Solution

The fourth proportional to 6,261.36, 8,640.90 and 4,272.84 is: 5,896.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,261.36 : 8,640.90 = 4,272.84 : x
  2. Step 2: Convert to fraction form
    6,261.36/8,640.90 = 4,272.84/x
  3. Step 3: Cross multiply
    6,261.36x = 8,640.90 × 4,272.84
  4. Step 4: Simplify right side
    6,261.36x = 36,921,183.16
  5. Step 5: Solve for x
    x = 36,921,183.16/6,261.36
  6. Step 6: Final answer
    x = 5,896.67

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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.