Home / 2,768.40-4,152.60-2,280.24

Finding the Fourth Proportional to 2,768.40, 4,152.60 and 2,280.24

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Solution

The fourth proportional to 2,768.40, 4,152.60 and 2,280.24 is: 3,420.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,768.40 : 4,152.60 = 2,280.24 : x
  2. Step 2: Convert to fraction form
    2,768.40/4,152.60 = 2,280.24/x
  3. Step 3: Cross multiply
    2,768.40x = 4,152.60 × 2,280.24
  4. Step 4: Simplify right side
    2,768.40x = 9,468,924.62
  5. Step 5: Solve for x
    x = 9,468,924.62/2,768.40
  6. Step 6: Final answer
    x = 3,420.36

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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.