Home / 2,759.24-4,138.32-1,298

Finding the Fourth Proportional to 2,759.24, 4,138.32 and 1,298

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Solution

The fourth proportional to 2,759.24, 4,138.32 and 1,298 is: 1,946.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,759.24 : 4,138.32 = 1,298 : x
  2. Step 2: Convert to fraction form
    2,759.24/4,138.32 = 1,298/x
  3. Step 3: Cross multiply
    2,759.24x = 4,138.32 × 1,298
  4. Step 4: Simplify right side
    2,759.24x = 5,371,539.36
  5. Step 5: Solve for x
    x = 5,371,539.36/2,759.24
  6. Step 6: Final answer
    x = 1,946.75

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Why These Related Problems?

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