Home / 2,133.50-3,198.53-1,431.44

Finding the Fourth Proportional to 2,133.50, 3,198.53 and 1,431.44

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Solution

The fourth proportional to 2,133.50, 3,198.53 and 1,431.44 is: 2,146.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,133.50 : 3,198.53 = 1,431.44 : x
  2. Step 2: Convert to fraction form
    2,133.50/3,198.53 = 1,431.44/x
  3. Step 3: Cross multiply
    2,133.50x = 3,198.53 × 1,431.44
  4. Step 4: Simplify right side
    2,133.50x = 4,578,491.37
  5. Step 5: Solve for x
    x = 4,578,491.37/2,133.50
  6. Step 6: Final answer
    x = 2,146.00

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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.