Home / 5,361.90-8,039.60-2,399.81

Finding the Fourth Proportional to 5,361.90, 8,039.60 and 2,399.81

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Solution

The fourth proportional to 5,361.90, 8,039.60 and 2,399.81 is: 3,598.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,361.90 : 8,039.60 = 2,399.81 : x
  2. Step 2: Convert to fraction form
    5,361.90/8,039.60 = 2,399.81/x
  3. Step 3: Cross multiply
    5,361.90x = 8,039.60 × 2,399.81
  4. Step 4: Simplify right side
    5,361.90x = 19,293,460.28
  5. Step 5: Solve for x
    x = 19,293,460.28/5,361.90
  6. Step 6: Final answer
    x = 3,598.25

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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.