Home / 1,684.32-2,324.88-1,629.60

Finding the Fourth Proportional to 1,684.32, 2,324.88 and 1,629.60

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Solution

The fourth proportional to 1,684.32, 2,324.88 and 1,629.60 is: 2,249.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,684.32 : 2,324.88 = 1,629.60 : x
  2. Step 2: Convert to fraction form
    1,684.32/2,324.88 = 1,629.60/x
  3. Step 3: Cross multiply
    1,684.32x = 2,324.88 × 1,629.60
  4. Step 4: Simplify right side
    1,684.32x = 3,788,624.45
  5. Step 5: Solve for x
    x = 3,788,624.45/1,684.32
  6. Step 6: Final answer
    x = 2,249.35

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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.