Home / 1,336.23-2,004.85-669.63

Finding the Fourth Proportional to 1,336.23, 2,004.85 and 669.63

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Solution

The fourth proportional to 1,336.23, 2,004.85 and 669.63 is: 1,004.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336.23 : 2,004.85 = 669.63 : x
  2. Step 2: Convert to fraction form
    1,336.23/2,004.85 = 669.63/x
  3. Step 3: Cross multiply
    1,336.23x = 2,004.85 × 669.63
  4. Step 4: Simplify right side
    1,336.23x = 1,342,516.06
  5. Step 5: Solve for x
    x = 1,342,516.06/1,336.23
  6. Step 6: Final answer
    x = 1,004.70

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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.