Home / 2,855.95-4,285.49-1,395.11

Finding the Fourth Proportional to 2,855.95, 4,285.49 and 1,395.11

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Solution

The fourth proportional to 2,855.95, 4,285.49 and 1,395.11 is: 2,093.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,855.95 : 4,285.49 = 1,395.11 : x
  2. Step 2: Convert to fraction form
    2,855.95/4,285.49 = 1,395.11/x
  3. Step 3: Cross multiply
    2,855.95x = 4,285.49 × 1,395.11
  4. Step 4: Simplify right side
    2,855.95x = 5,978,729.95
  5. Step 5: Solve for x
    x = 5,978,729.95/2,855.95
  6. Step 6: Final answer
    x = 2,093.43

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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.