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Finding the Fourth Proportional to 2,669.76, 3,684.27 and 1,490.83

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Solution

The fourth proportional to 2,669.76, 3,684.27 and 1,490.83 is: 2,057.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,669.76 : 3,684.27 = 1,490.83 : x
  2. Step 2: Convert to fraction form
    2,669.76/3,684.27 = 1,490.83/x
  3. Step 3: Cross multiply
    2,669.76x = 3,684.27 × 1,490.83
  4. Step 4: Simplify right side
    2,669.76x = 5,492,620.24
  5. Step 5: Solve for x
    x = 5,492,620.24/2,669.76
  6. Step 6: Final answer
    x = 2,057.35

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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.