Home / 3,822.02-5,734.40-2,780.26

Finding the Fourth Proportional to 3,822.02, 5,734.40 and 2,780.26

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Solution

The fourth proportional to 3,822.02, 5,734.40 and 2,780.26 is: 4,171.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,822.02 : 5,734.40 = 2,780.26 : x
  2. Step 2: Convert to fraction form
    3,822.02/5,734.40 = 2,780.26/x
  3. Step 3: Cross multiply
    3,822.02x = 5,734.40 × 2,780.26
  4. Step 4: Simplify right side
    3,822.02x = 15,943,122.94
  5. Step 5: Solve for x
    x = 15,943,122.94/3,822.02
  6. Step 6: Final answer
    x = 4,171.39

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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.