Home / 2,760.45-4,141.49-1,299.75

Finding the Fourth Proportional to 2,760.45, 4,141.49 and 1,299.75

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Solution

The fourth proportional to 2,760.45, 4,141.49 and 1,299.75 is: 1,950.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,760.45 : 4,141.49 = 1,299.75 : x
  2. Step 2: Convert to fraction form
    2,760.45/4,141.49 = 1,299.75/x
  3. Step 3: Cross multiply
    2,760.45x = 4,141.49 × 1,299.75
  4. Step 4: Simplify right side
    2,760.45x = 5,382,895.13
  5. Step 5: Solve for x
    x = 5,382,895.13/2,760.45
  6. Step 6: Final answer
    x = 1,950.01

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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.