Home / 3,149.57-4,345.70-1,804.56

Finding the Fourth Proportional to 3,149.57, 4,345.70 and 1,804.56

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Solution

The fourth proportional to 3,149.57, 4,345.70 and 1,804.56 is: 2,489.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,149.57 : 4,345.70 = 1,804.56 : x
  2. Step 2: Convert to fraction form
    3,149.57/4,345.70 = 1,804.56/x
  3. Step 3: Cross multiply
    3,149.57x = 4,345.70 × 1,804.56
  4. Step 4: Simplify right side
    3,149.57x = 7,842,067.37
  5. Step 5: Solve for x
    x = 7,842,067.37/3,149.57
  6. Step 6: Final answer
    x = 2,489.89

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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.