Home / 1,619.69-2,236.24-1,246.01

Finding the Fourth Proportional to 1,619.69, 2,236.24 and 1,246.01

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Solution

The fourth proportional to 1,619.69, 2,236.24 and 1,246.01 is: 1,720.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,619.69 : 2,236.24 = 1,246.01 : x
  2. Step 2: Convert to fraction form
    1,619.69/2,236.24 = 1,246.01/x
  3. Step 3: Cross multiply
    1,619.69x = 2,236.24 × 1,246.01
  4. Step 4: Simplify right side
    1,619.69x = 2,786,367.78
  5. Step 5: Solve for x
    x = 2,786,367.78/1,619.69
  6. Step 6: Final answer
    x = 1,720.31

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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.