Home / 1,668.19-2,300.79-1,556.41

Finding the Fourth Proportional to 1,668.19, 2,300.79 and 1,556.41

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Solution

The fourth proportional to 1,668.19, 2,300.79 and 1,556.41 is: 2,146.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,668.19 : 2,300.79 = 1,556.41 : x
  2. Step 2: Convert to fraction form
    1,668.19/2,300.79 = 1,556.41/x
  3. Step 3: Cross multiply
    1,668.19x = 2,300.79 × 1,556.41
  4. Step 4: Simplify right side
    1,668.19x = 3,580,972.56
  5. Step 5: Solve for x
    x = 3,580,972.56/1,668.19
  6. Step 6: Final answer
    x = 2,146.62

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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.