Home / 2,805.42-3,871.44-1,626.60

Finding the Fourth Proportional to 2,805.42, 3,871.44 and 1,626.60

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Solution

The fourth proportional to 2,805.42, 3,871.44 and 1,626.60 is: 2,244.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,805.42 : 3,871.44 = 1,626.60 : x
  2. Step 2: Convert to fraction form
    2,805.42/3,871.44 = 1,626.60/x
  3. Step 3: Cross multiply
    2,805.42x = 3,871.44 × 1,626.60
  4. Step 4: Simplify right side
    2,805.42x = 6,297,284.30
  5. Step 5: Solve for x
    x = 6,297,284.30/2,805.42
  6. Step 6: Final answer
    x = 2,244.69

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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.