Home / 3,198.35-4,412.95-1,801.10

Finding the Fourth Proportional to 3,198.35, 4,412.95 and 1,801.10

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Solution

The fourth proportional to 3,198.35, 4,412.95 and 1,801.10 is: 2,485.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198.35 : 4,412.95 = 1,801.10 : x
  2. Step 2: Convert to fraction form
    3,198.35/4,412.95 = 1,801.10/x
  3. Step 3: Cross multiply
    3,198.35x = 4,412.95 × 1,801.10
  4. Step 4: Simplify right side
    3,198.35x = 7,948,164.25
  5. Step 5: Solve for x
    x = 7,948,164.25/3,198.35
  6. Step 6: Final answer
    x = 2,485.08

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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.