Home / 2,115.24-2,918.05-1,369.44

Finding the Fourth Proportional to 2,115.24, 2,918.05 and 1,369.44

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Solution

The fourth proportional to 2,115.24, 2,918.05 and 1,369.44 is: 1,889.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,115.24 : 2,918.05 = 1,369.44 : x
  2. Step 2: Convert to fraction form
    2,115.24/2,918.05 = 1,369.44/x
  3. Step 3: Cross multiply
    2,115.24x = 2,918.05 × 1,369.44
  4. Step 4: Simplify right side
    2,115.24x = 3,996,090.97
  5. Step 5: Solve for x
    x = 3,996,090.97/2,115.24
  6. Step 6: Final answer
    x = 1,889.19

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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.