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Finding the Fourth Proportional to 2,669.74, 3,684.90 and 1,622.68

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Solution

The fourth proportional to 2,669.74, 3,684.90 and 1,622.68 is: 2,239.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,669.74 : 3,684.90 = 1,622.68 : x
  2. Step 2: Convert to fraction form
    2,669.74/3,684.90 = 1,622.68/x
  3. Step 3: Cross multiply
    2,669.74x = 3,684.90 × 1,622.68
  4. Step 4: Simplify right side
    2,669.74x = 5,979,413.53
  5. Step 5: Solve for x
    x = 5,979,413.53/2,669.74
  6. Step 6: Final answer
    x = 2,239.70

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1.5x scale

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.