Home / 3,405.45-4,702.14-2,745.25

Finding the Fourth Proportional to 3,405.45, 4,702.14 and 2,745.25

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Solution

The fourth proportional to 3,405.45, 4,702.14 and 2,745.25 is: 3,790.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405.45 : 4,702.14 = 2,745.25 : x
  2. Step 2: Convert to fraction form
    3,405.45/4,702.14 = 2,745.25/x
  3. Step 3: Cross multiply
    3,405.45x = 4,702.14 × 2,745.25
  4. Step 4: Simplify right side
    3,405.45x = 12,908,545.80
  5. Step 5: Solve for x
    x = 12,908,545.80/3,405.45
  6. Step 6: Final answer
    x = 3,790.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.