Home / 1,259.88-1,890.94-675.36

Finding the Fourth Proportional to 1,259.88, 1,890.94 and 675.36

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Solution

The fourth proportional to 1,259.88, 1,890.94 and 675.36 is: 1,013.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259.88 : 1,890.94 = 675.36 : x
  2. Step 2: Convert to fraction form
    1,259.88/1,890.94 = 675.36/x
  3. Step 3: Cross multiply
    1,259.88x = 1,890.94 × 675.36
  4. Step 4: Simplify right side
    1,259.88x = 1,277,065.24
  5. Step 5: Solve for x
    x = 1,277,065.24/1,259.88
  6. Step 6: Final answer
    x = 1,013.64

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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.