Home / 2,156.70-3,226.98-1,806.30

Finding the Fourth Proportional to 2,156.70, 3,226.98 and 1,806.30

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Solution

The fourth proportional to 2,156.70, 3,226.98 and 1,806.30 is: 2,702.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,156.70 : 3,226.98 = 1,806.30 : x
  2. Step 2: Convert to fraction form
    2,156.70/3,226.98 = 1,806.30/x
  3. Step 3: Cross multiply
    2,156.70x = 3,226.98 × 1,806.30
  4. Step 4: Simplify right side
    2,156.70x = 5,828,893.97
  5. Step 5: Solve for x
    x = 5,828,893.97/2,156.70
  6. Step 6: Final answer
    x = 2,702.69

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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.