Home / 2,205.81-3,044.01-1,211.11

Finding the Fourth Proportional to 2,205.81, 3,044.01 and 1,211.11

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Solution

The fourth proportional to 2,205.81, 3,044.01 and 1,211.11 is: 1,671.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,205.81 : 3,044.01 = 1,211.11 : x
  2. Step 2: Convert to fraction form
    2,205.81/3,044.01 = 1,211.11/x
  3. Step 3: Cross multiply
    2,205.81x = 3,044.01 × 1,211.11
  4. Step 4: Simplify right side
    2,205.81x = 3,686,609.68
  5. Step 5: Solve for x
    x = 3,686,609.68/2,205.81
  6. Step 6: Final answer
    x = 1,671.32

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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.