Home / 6,921.34-10,381.65-2,241.28

Finding the Fourth Proportional to 6,921.34, 10,381.65 and 2,241.28

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Solution

The fourth proportional to 6,921.34, 10,381.65 and 2,241.28 is: 3,361.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,921.34 : 10,381.65 = 2,241.28 : x
  2. Step 2: Convert to fraction form
    6,921.34/10,381.65 = 2,241.28/x
  3. Step 3: Cross multiply
    6,921.34x = 10,381.65 × 2,241.28
  4. Step 4: Simplify right side
    6,921.34x = 23,268,184.51
  5. Step 5: Solve for x
    x = 23,268,184.51/6,921.34
  6. Step 6: Final answer
    x = 3,361.80

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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.