Home / 1,938.83-2,905.41-1,206.18

Finding the Fourth Proportional to 1,938.83, 2,905.41 and 1,206.18

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Solution

The fourth proportional to 1,938.83, 2,905.41 and 1,206.18 is: 1,807.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938.83 : 2,905.41 = 1,206.18 : x
  2. Step 2: Convert to fraction form
    1,938.83/2,905.41 = 1,206.18/x
  3. Step 3: Cross multiply
    1,938.83x = 2,905.41 × 1,206.18
  4. Step 4: Simplify right side
    1,938.83x = 3,504,447.43
  5. Step 5: Solve for x
    x = 3,504,447.43/1,938.83
  6. Step 6: Final answer
    x = 1,807.51

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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.