Home / 2,619.02-3,608.42-1,685.90

Finding the Fourth Proportional to 2,619.02, 3,608.42 and 1,685.90

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Solution

The fourth proportional to 2,619.02, 3,608.42 and 1,685.90 is: 2,322.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619.02 : 3,608.42 = 1,685.90 : x
  2. Step 2: Convert to fraction form
    2,619.02/3,608.42 = 1,685.90/x
  3. Step 3: Cross multiply
    2,619.02x = 3,608.42 × 1,685.90
  4. Step 4: Simplify right side
    2,619.02x = 6,083,435.28
  5. Step 5: Solve for x
    x = 6,083,435.28/2,619.02
  6. Step 6: Final answer
    x = 2,322.79

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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.