Home / 3,149.21-4,345.79-1,732.89

Finding the Fourth Proportional to 3,149.21, 4,345.79 and 1,732.89

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Solution

The fourth proportional to 3,149.21, 4,345.79 and 1,732.89 is: 2,391.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,149.21 : 4,345.79 = 1,732.89 : x
  2. Step 2: Convert to fraction form
    3,149.21/4,345.79 = 1,732.89/x
  3. Step 3: Cross multiply
    3,149.21x = 4,345.79 × 1,732.89
  4. Step 4: Simplify right side
    3,149.21x = 7,530,783.67
  5. Step 5: Solve for x
    x = 7,530,783.67/3,149.21
  6. Step 6: Final answer
    x = 2,391.32

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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.