Home / 2,639.93-3,643.77-1,644.67

Finding the Fourth Proportional to 2,639.93, 3,643.77 and 1,644.67

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Solution

The fourth proportional to 2,639.93, 3,643.77 and 1,644.67 is: 2,270.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639.93 : 3,643.77 = 1,644.67 : x
  2. Step 2: Convert to fraction form
    2,639.93/3,643.77 = 1,644.67/x
  3. Step 3: Cross multiply
    2,639.93x = 3,643.77 × 1,644.67
  4. Step 4: Simplify right side
    2,639.93x = 5,992,800.68
  5. Step 5: Solve for x
    x = 5,992,800.68/2,639.93
  6. Step 6: Final answer
    x = 2,270.06

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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.