Home / 2,619.33-3,614.90-1,440.65

Finding the Fourth Proportional to 2,619.33, 3,614.90 and 1,440.65

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Solution

The fourth proportional to 2,619.33, 3,614.90 and 1,440.65 is: 1,988.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619.33 : 3,614.90 = 1,440.65 : x
  2. Step 2: Convert to fraction form
    2,619.33/3,614.90 = 1,440.65/x
  3. Step 3: Cross multiply
    2,619.33x = 3,614.90 × 1,440.65
  4. Step 4: Simplify right side
    2,619.33x = 5,207,780.41
  5. Step 5: Solve for x
    x = 5,207,780.41/2,619.33
  6. Step 6: Final answer
    x = 1,988.21

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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.