Home / 3,419.75-4,719.63-1,928.03

Finding the Fourth Proportional to 3,419.75, 4,719.63 and 1,928.03

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Solution

The fourth proportional to 3,419.75, 4,719.63 and 1,928.03 is: 2,660.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.75 : 4,719.63 = 1,928.03 : x
  2. Step 2: Convert to fraction form
    3,419.75/4,719.63 = 1,928.03/x
  3. Step 3: Cross multiply
    3,419.75x = 4,719.63 × 1,928.03
  4. Step 4: Simplify right side
    3,419.75x = 9,099,588.23
  5. Step 5: Solve for x
    x = 9,099,588.23/3,419.75
  6. Step 6: Final answer
    x = 2,660.89

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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.