Home / 2,111.40-3,168.45-795.15

Finding the Fourth Proportional to 2,111.40, 3,168.45 and 795.15

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Solution

The fourth proportional to 2,111.40, 3,168.45 and 795.15 is: 1,193.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,111.40 : 3,168.45 = 795.15 : x
  2. Step 2: Convert to fraction form
    2,111.40/3,168.45 = 795.15/x
  3. Step 3: Cross multiply
    2,111.40x = 3,168.45 × 795.15
  4. Step 4: Simplify right side
    2,111.40x = 2,519,393.02
  5. Step 5: Solve for x
    x = 2,519,393.02/2,111.40
  6. Step 6: Final answer
    x = 1,193.23

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.