Home / 3,838.12-5,756.80-1,372.84

Finding the Fourth Proportional to 3,838.12, 5,756.80 and 1,372.84

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Solution

The fourth proportional to 3,838.12, 5,756.80 and 1,372.84 is: 2,059.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,838.12 : 5,756.80 = 1,372.84 : x
  2. Step 2: Convert to fraction form
    3,838.12/5,756.80 = 1,372.84/x
  3. Step 3: Cross multiply
    3,838.12x = 5,756.80 × 1,372.84
  4. Step 4: Simplify right side
    3,838.12x = 7,903,165.31
  5. Step 5: Solve for x
    x = 7,903,165.31/3,838.12
  6. Step 6: Final answer
    x = 2,059.12

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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.