Home / 3,109.34-4,652.39-1,855.37

Finding the Fourth Proportional to 3,109.34, 4,652.39 and 1,855.37

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Solution

The fourth proportional to 3,109.34, 4,652.39 and 1,855.37 is: 2,776.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.34 : 4,652.39 = 1,855.37 : x
  2. Step 2: Convert to fraction form
    3,109.34/4,652.39 = 1,855.37/x
  3. Step 3: Cross multiply
    3,109.34x = 4,652.39 × 1,855.37
  4. Step 4: Simplify right side
    3,109.34x = 8,631,921.10
  5. Step 5: Solve for x
    x = 8,631,921.10/3,109.34
  6. Step 6: Final answer
    x = 2,776.12

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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.