Home / 2,805.26-3,870.42-1,626.30

Finding the Fourth Proportional to 2,805.26, 3,870.42 and 1,626.30

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Solution

The fourth proportional to 2,805.26, 3,870.42 and 1,626.30 is: 2,243.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,805.26 : 3,870.42 = 1,626.30 : x
  2. Step 2: Convert to fraction form
    2,805.26/3,870.42 = 1,626.30/x
  3. Step 3: Cross multiply
    2,805.26x = 3,870.42 × 1,626.30
  4. Step 4: Simplify right side
    2,805.26x = 6,294,464.05
  5. Step 5: Solve for x
    x = 6,294,464.05/2,805.26
  6. Step 6: Final answer
    x = 2,243.81

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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.