Home / 2,091.70-3,137.55-1,702.90

Finding the Fourth Proportional to 2,091.70, 3,137.55 and 1,702.90

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Solution

The fourth proportional to 2,091.70, 3,137.55 and 1,702.90 is: 2,554.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,091.70 : 3,137.55 = 1,702.90 : x
  2. Step 2: Convert to fraction form
    2,091.70/3,137.55 = 1,702.90/x
  3. Step 3: Cross multiply
    2,091.70x = 3,137.55 × 1,702.90
  4. Step 4: Simplify right side
    2,091.70x = 5,342,933.90
  5. Step 5: Solve for x
    x = 5,342,933.90/2,091.70
  6. Step 6: Final answer
    x = 2,554.35

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1.5x scale

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.