Home / 2,500.08-3,745.80-1,986

Finding the Fourth Proportional to 2,500.08, 3,745.80 and 1,986

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Solution

The fourth proportional to 2,500.08, 3,745.80 and 1,986 is: 2,975.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,500.08 : 3,745.80 = 1,986 : x
  2. Step 2: Convert to fraction form
    2,500.08/3,745.80 = 1,986/x
  3. Step 3: Cross multiply
    2,500.08x = 3,745.80 × 1,986
  4. Step 4: Simplify right side
    2,500.08x = 7,439,158.80
  5. Step 5: Solve for x
    x = 7,439,158.80/2,500.08
  6. Step 6: Final answer
    x = 2,975.57

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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.