Home / 2,180.96-3,008.63-1,382.98

Finding the Fourth Proportional to 2,180.96, 3,008.63 and 1,382.98

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Solution

The fourth proportional to 2,180.96, 3,008.63 and 1,382.98 is: 1,907.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180.96 : 3,008.63 = 1,382.98 : x
  2. Step 2: Convert to fraction form
    2,180.96/3,008.63 = 1,382.98/x
  3. Step 3: Cross multiply
    2,180.96x = 3,008.63 × 1,382.98
  4. Step 4: Simplify right side
    2,180.96x = 4,160,875.12
  5. Step 5: Solve for x
    x = 4,160,875.12/2,180.96
  6. Step 6: Final answer
    x = 1,907.82

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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.