Home / 2,685.81-4,028.73-1,718.07

Finding the Fourth Proportional to 2,685.81, 4,028.73 and 1,718.07

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Solution

The fourth proportional to 2,685.81, 4,028.73 and 1,718.07 is: 2,577.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,685.81 : 4,028.73 = 1,718.07 : x
  2. Step 2: Convert to fraction form
    2,685.81/4,028.73 = 1,718.07/x
  3. Step 3: Cross multiply
    2,685.81x = 4,028.73 × 1,718.07
  4. Step 4: Simplify right side
    2,685.81x = 6,921,640.15
  5. Step 5: Solve for x
    x = 6,921,640.15/2,685.81
  6. Step 6: Final answer
    x = 2,577.11

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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.