Home / 5,270.40-7,896.96-4,112.64

Finding the Fourth Proportional to 5,270.40, 7,896.96 and 4,112.64

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Solution

The fourth proportional to 5,270.40, 7,896.96 and 4,112.64 is: 6,162.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,270.40 : 7,896.96 = 4,112.64 : x
  2. Step 2: Convert to fraction form
    5,270.40/7,896.96 = 4,112.64/x
  3. Step 3: Cross multiply
    5,270.40x = 7,896.96 × 4,112.64
  4. Step 4: Simplify right side
    5,270.40x = 32,477,353.57
  5. Step 5: Solve for x
    x = 32,477,353.57/5,270.40
  6. Step 6: Final answer
    x = 6,162.22

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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.