Home / 2,619.26-3,614.65-1,440.36

Finding the Fourth Proportional to 2,619.26, 3,614.65 and 1,440.36

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Solution

The fourth proportional to 2,619.26, 3,614.65 and 1,440.36 is: 1,987.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619.26 : 3,614.65 = 1,440.36 : x
  2. Step 2: Convert to fraction form
    2,619.26/3,614.65 = 1,440.36/x
  3. Step 3: Cross multiply
    2,619.26x = 3,614.65 × 1,440.36
  4. Step 4: Simplify right side
    2,619.26x = 5,206,390.07
  5. Step 5: Solve for x
    x = 5,206,390.07/2,619.26
  6. Step 6: Final answer
    x = 1,987.73

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1.5x scale

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.