Home / 2,621.40-3,617.44-1,442.44

Finding the Fourth Proportional to 2,621.40, 3,617.44 and 1,442.44

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Solution

The fourth proportional to 2,621.40, 3,617.44 and 1,442.44 is: 1,990.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,621.40 : 3,617.44 = 1,442.44 : x
  2. Step 2: Convert to fraction form
    2,621.40/3,617.44 = 1,442.44/x
  3. Step 3: Cross multiply
    2,621.40x = 3,617.44 × 1,442.44
  4. Step 4: Simplify right side
    2,621.40x = 5,217,940.15
  5. Step 5: Solve for x
    x = 5,217,940.15/2,621.40
  6. Step 6: Final answer
    x = 1,990.52

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Why These Related Problems?

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