Home / 3,426.09-5,139-1,234.86

Finding the Fourth Proportional to 3,426.09, 5,139 and 1,234.86

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Solution

The fourth proportional to 3,426.09, 5,139 and 1,234.86 is: 1,852.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,426.09 : 5,139 = 1,234.86 : x
  2. Step 2: Convert to fraction form
    3,426.09/5,139 = 1,234.86/x
  3. Step 3: Cross multiply
    3,426.09x = 5,139 × 1,234.86
  4. Step 4: Simplify right side
    3,426.09x = 6,345,945.54
  5. Step 5: Solve for x
    x = 6,345,945.54/3,426.09
  6. Step 6: Final answer
    x = 1,852.24

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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.