Home / 1,323.40-1,825.60-1,229.64

Finding the Fourth Proportional to 1,323.40, 1,825.60 and 1,229.64

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Solution

The fourth proportional to 1,323.40, 1,825.60 and 1,229.64 is: 1,696.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323.40 : 1,825.60 = 1,229.64 : x
  2. Step 2: Convert to fraction form
    1,323.40/1,825.60 = 1,229.64/x
  3. Step 3: Cross multiply
    1,323.40x = 1,825.60 × 1,229.64
  4. Step 4: Simplify right side
    1,323.40x = 2,244,830.78
  5. Step 5: Solve for x
    x = 2,244,830.78/1,323.40
  6. Step 6: Final answer
    x = 1,696.26

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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.