Home / 1,684.22-2,324.55-1,021.29

Finding the Fourth Proportional to 1,684.22, 2,324.55 and 1,021.29

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Solution

The fourth proportional to 1,684.22, 2,324.55 and 1,021.29 is: 1,409.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,684.22 : 2,324.55 = 1,021.29 : x
  2. Step 2: Convert to fraction form
    1,684.22/2,324.55 = 1,021.29/x
  3. Step 3: Cross multiply
    1,684.22x = 2,324.55 × 1,021.29
  4. Step 4: Simplify right side
    1,684.22x = 2,374,039.67
  5. Step 5: Solve for x
    x = 2,374,039.67/1,684.22
  6. Step 6: Final answer
    x = 1,409.58

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1.5x scale

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.