Home / 1,972.36-2,945.33-1,836.28

Finding the Fourth Proportional to 1,972.36, 2,945.33 and 1,836.28

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Solution

The fourth proportional to 1,972.36, 2,945.33 and 1,836.28 is: 2,742.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972.36 : 2,945.33 = 1,836.28 : x
  2. Step 2: Convert to fraction form
    1,972.36/2,945.33 = 1,836.28/x
  3. Step 3: Cross multiply
    1,972.36x = 2,945.33 × 1,836.28
  4. Step 4: Simplify right side
    1,972.36x = 5,408,450.57
  5. Step 5: Solve for x
    x = 5,408,450.57/1,972.36
  6. Step 6: Final answer
    x = 2,742.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.