Home / 1,619.66-2,427.61-693.83

Finding the Fourth Proportional to 1,619.66, 2,427.61 and 693.83

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Solution

The fourth proportional to 1,619.66, 2,427.61 and 693.83 is: 1,039.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,619.66 : 2,427.61 = 693.83 : x
  2. Step 2: Convert to fraction form
    1,619.66/2,427.61 = 693.83/x
  3. Step 3: Cross multiply
    1,619.66x = 2,427.61 × 693.83
  4. Step 4: Simplify right side
    1,619.66x = 1,684,348.65
  5. Step 5: Solve for x
    x = 1,684,348.65/1,619.66
  6. Step 6: Final answer
    x = 1,039.94

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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.