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Finding the Fourth Proportional to 3,433.79, 5,150.70 and 836.71

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Solution

The fourth proportional to 3,433.79, 5,150.70 and 836.71 is: 1,255.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,433.79 : 5,150.70 = 836.71 : x
  2. Step 2: Convert to fraction form
    3,433.79/5,150.70 = 836.71/x
  3. Step 3: Cross multiply
    3,433.79x = 5,150.70 × 836.71
  4. Step 4: Simplify right side
    3,433.79x = 4,309,629.32
  5. Step 5: Solve for x
    x = 4,309,629.32/3,433.79
  6. Step 6: Final answer
    x = 1,255.06

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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.