Home / 6,811-9,399.18-4,331.32

Finding the Fourth Proportional to 6,811, 9,399.18 and 4,331.32

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Solution

The fourth proportional to 6,811, 9,399.18 and 4,331.32 is: 5,977.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,811 : 9,399.18 = 4,331.32 : x
  2. Step 2: Convert to fraction form
    6,811/9,399.18 = 4,331.32/x
  3. Step 3: Cross multiply
    6,811x = 9,399.18 × 4,331.32
  4. Step 4: Simplify right side
    6,811x = 40,710,856.32
  5. Step 5: Solve for x
    x = 40,710,856.32/6,811
  6. Step 6: Final answer
    x = 5,977.22

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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.