Home / 2,675.40-4,013.09-1,115.37

Finding the Fourth Proportional to 2,675.40, 4,013.09 and 1,115.37

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Solution

The fourth proportional to 2,675.40, 4,013.09 and 1,115.37 is: 1,673.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,675.40 : 4,013.09 = 1,115.37 : x
  2. Step 2: Convert to fraction form
    2,675.40/4,013.09 = 1,115.37/x
  3. Step 3: Cross multiply
    2,675.40x = 4,013.09 × 1,115.37
  4. Step 4: Simplify right side
    2,675.40x = 4,476,085.07
  5. Step 5: Solve for x
    x = 4,476,085.07/2,675.40
  6. Step 6: Final answer
    x = 1,673.05

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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.