Home / 1,896.36-2,617.38-1,275

Finding the Fourth Proportional to 1,896.36, 2,617.38 and 1,275

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Solution

The fourth proportional to 1,896.36, 2,617.38 and 1,275 is: 1,759.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,896.36 : 2,617.38 = 1,275 : x
  2. Step 2: Convert to fraction form
    1,896.36/2,617.38 = 1,275/x
  3. Step 3: Cross multiply
    1,896.36x = 2,617.38 × 1,275
  4. Step 4: Simplify right side
    1,896.36x = 3,337,159.50
  5. Step 5: Solve for x
    x = 3,337,159.50/1,896.36
  6. Step 6: Final answer
    x = 1,759.77

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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.