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Finding the Fourth Proportional to 1,336.19, 1,844.03 and 738.68

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Solution

The fourth proportional to 1,336.19, 1,844.03 and 738.68 is: 1,019.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336.19 : 1,844.03 = 738.68 : x
  2. Step 2: Convert to fraction form
    1,336.19/1,844.03 = 738.68/x
  3. Step 3: Cross multiply
    1,336.19x = 1,844.03 × 738.68
  4. Step 4: Simplify right side
    1,336.19x = 1,362,148.08
  5. Step 5: Solve for x
    x = 1,362,148.08/1,336.19
  6. Step 6: Final answer
    x = 1,019.43

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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.