Home / 6,840.81-10,261.68-2,161.03

Finding the Fourth Proportional to 6,840.81, 10,261.68 and 2,161.03

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Solution

The fourth proportional to 6,840.81, 10,261.68 and 2,161.03 is: 3,241.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,840.81 : 10,261.68 = 2,161.03 : x
  2. Step 2: Convert to fraction form
    6,840.81/10,261.68 = 2,161.03/x
  3. Step 3: Cross multiply
    6,840.81x = 10,261.68 × 2,161.03
  4. Step 4: Simplify right side
    6,840.81x = 22,175,798.33
  5. Step 5: Solve for x
    x = 22,175,798.33/6,840.81
  6. Step 6: Final answer
    x = 3,241.69

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1.5x scale

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.