Home / 2,619.45-3,614.76-1,440.41

Finding the Fourth Proportional to 2,619.45, 3,614.76 and 1,440.41

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Solution

The fourth proportional to 2,619.45, 3,614.76 and 1,440.41 is: 1,987.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619.45 : 3,614.76 = 1,440.41 : x
  2. Step 2: Convert to fraction form
    2,619.45/3,614.76 = 1,440.41/x
  3. Step 3: Cross multiply
    2,619.45x = 3,614.76 × 1,440.41
  4. Step 4: Simplify right side
    2,619.45x = 5,206,718.38
  5. Step 5: Solve for x
    x = 5,206,718.38/2,619.45
  6. Step 6: Final answer
    x = 1,987.71

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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.