Home / 3,745.83-5,620.38-1,438.95

Finding the Fourth Proportional to 3,745.83, 5,620.38 and 1,438.95

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Solution

The fourth proportional to 3,745.83, 5,620.38 and 1,438.95 is: 2,159.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,745.83 : 5,620.38 = 1,438.95 : x
  2. Step 2: Convert to fraction form
    3,745.83/5,620.38 = 1,438.95/x
  3. Step 3: Cross multiply
    3,745.83x = 5,620.38 × 1,438.95
  4. Step 4: Simplify right side
    3,745.83x = 8,087,445.80
  5. Step 5: Solve for x
    x = 8,087,445.80/3,745.83
  6. Step 6: Final answer
    x = 2,159.05

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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.