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Finding the Fourth Proportional to 3,448.63, 5,169.81 and 1,256.86

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Solution

The fourth proportional to 3,448.63, 5,169.81 and 1,256.86 is: 1,884.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,448.63 : 5,169.81 = 1,256.86 : x
  2. Step 2: Convert to fraction form
    3,448.63/5,169.81 = 1,256.86/x
  3. Step 3: Cross multiply
    3,448.63x = 5,169.81 × 1,256.86
  4. Step 4: Simplify right side
    3,448.63x = 6,497,727.40
  5. Step 5: Solve for x
    x = 6,497,727.40/3,448.63
  6. Step 6: Final answer
    x = 1,884.15

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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.