Home / 2,145.48-2,960.70-1,201.28

Finding the Fourth Proportional to 2,145.48, 2,960.70 and 1,201.28

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Solution

The fourth proportional to 2,145.48, 2,960.70 and 1,201.28 is: 1,657.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145.48 : 2,960.70 = 1,201.28 : x
  2. Step 2: Convert to fraction form
    2,145.48/2,960.70 = 1,201.28/x
  3. Step 3: Cross multiply
    2,145.48x = 2,960.70 × 1,201.28
  4. Step 4: Simplify right side
    2,145.48x = 3,556,629.70
  5. Step 5: Solve for x
    x = 3,556,629.70/2,145.48
  6. Step 6: Final answer
    x = 1,657.73

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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.