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Finding the Fourth Proportional to 1,824.24, 2,736.32 and 669.68

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Solution

The fourth proportional to 1,824.24, 2,736.32 and 669.68 is: 1,004.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,824.24 : 2,736.32 = 669.68 : x
  2. Step 2: Convert to fraction form
    1,824.24/2,736.32 = 669.68/x
  3. Step 3: Cross multiply
    1,824.24x = 2,736.32 × 669.68
  4. Step 4: Simplify right side
    1,824.24x = 1,832,458.78
  5. Step 5: Solve for x
    x = 1,832,458.78/1,824.24
  6. Step 6: Final answer
    x = 1,004.51

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.