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Finding the Fourth Proportional to 2,669.43, 3,683.70 and 1,490.49

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Solution

The fourth proportional to 2,669.43, 3,683.70 and 1,490.49 is: 2,056.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,669.43 : 3,683.70 = 1,490.49 : x
  2. Step 2: Convert to fraction form
    2,669.43/3,683.70 = 1,490.49/x
  3. Step 3: Cross multiply
    2,669.43x = 3,683.70 × 1,490.49
  4. Step 4: Simplify right side
    2,669.43x = 5,490,518.01
  5. Step 5: Solve for x
    x = 5,490,518.01/2,669.43
  6. Step 6: Final answer
    x = 2,056.81

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.