Home / 3,760.25-5,638.80-1,419.84

Finding the Fourth Proportional to 3,760.25, 5,638.80 and 1,419.84

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Solution

The fourth proportional to 3,760.25, 5,638.80 and 1,419.84 is: 2,129.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,760.25 : 5,638.80 = 1,419.84 : x
  2. Step 2: Convert to fraction form
    3,760.25/5,638.80 = 1,419.84/x
  3. Step 3: Cross multiply
    3,760.25x = 5,638.80 × 1,419.84
  4. Step 4: Simplify right side
    3,760.25x = 8,006,193.79
  5. Step 5: Solve for x
    x = 8,006,193.79/3,760.25
  6. Step 6: Final answer
    x = 2,129.17

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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.