Home / 3,828.75-5,742.40-1,363.56

Finding the Fourth Proportional to 3,828.75, 5,742.40 and 1,363.56

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Solution

The fourth proportional to 3,828.75, 5,742.40 and 1,363.56 is: 2,045.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,828.75 : 5,742.40 = 1,363.56 : x
  2. Step 2: Convert to fraction form
    3,828.75/5,742.40 = 1,363.56/x
  3. Step 3: Cross multiply
    3,828.75x = 5,742.40 × 1,363.56
  4. Step 4: Simplify right side
    3,828.75x = 7,830,106.94
  5. Step 5: Solve for x
    x = 7,830,106.94/3,828.75
  6. Step 6: Final answer
    x = 2,045.08

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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.