Home / 6,810.94-9,399.09-3,980.26

Finding the Fourth Proportional to 6,810.94, 9,399.09 and 3,980.26

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Solution

The fourth proportional to 6,810.94, 9,399.09 and 3,980.26 is: 5,492.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,810.94 : 9,399.09 = 3,980.26 : x
  2. Step 2: Convert to fraction form
    6,810.94/9,399.09 = 3,980.26/x
  3. Step 3: Cross multiply
    6,810.94x = 9,399.09 × 3,980.26
  4. Step 4: Simplify right side
    6,810.94x = 37,410,821.96
  5. Step 5: Solve for x
    x = 37,410,821.96/6,810.94
  6. Step 6: Final answer
    x = 5,492.75

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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.