Home / 3,145.23-4,340.37-1,747.98

Finding the Fourth Proportional to 3,145.23, 4,340.37 and 1,747.98

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Solution

The fourth proportional to 3,145.23, 4,340.37 and 1,747.98 is: 2,412.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.23 : 4,340.37 = 1,747.98 : x
  2. Step 2: Convert to fraction form
    3,145.23/4,340.37 = 1,747.98/x
  3. Step 3: Cross multiply
    3,145.23x = 4,340.37 × 1,747.98
  4. Step 4: Simplify right side
    3,145.23x = 7,586,879.95
  5. Step 5: Solve for x
    x = 7,586,879.95/3,145.23
  6. Step 6: Final answer
    x = 2,412.19

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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.