Home / 1,556.94-2,143.26-1,360.20

Finding the Fourth Proportional to 1,556.94, 2,143.26 and 1,360.20

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Solution

The fourth proportional to 1,556.94, 2,143.26 and 1,360.20 is: 1,872.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556.94 : 2,143.26 = 1,360.20 : x
  2. Step 2: Convert to fraction form
    1,556.94/2,143.26 = 1,360.20/x
  3. Step 3: Cross multiply
    1,556.94x = 2,143.26 × 1,360.20
  4. Step 4: Simplify right side
    1,556.94x = 2,915,262.25
  5. Step 5: Solve for x
    x = 2,915,262.25/1,556.94
  6. Step 6: Final answer
    x = 1,872.43

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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.