Home / 3,131.46-4,320.44-1,804.99

Finding the Fourth Proportional to 3,131.46, 4,320.44 and 1,804.99

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Solution

The fourth proportional to 3,131.46, 4,320.44 and 1,804.99 is: 2,490.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131.46 : 4,320.44 = 1,804.99 : x
  2. Step 2: Convert to fraction form
    3,131.46/4,320.44 = 1,804.99/x
  3. Step 3: Cross multiply
    3,131.46x = 4,320.44 × 1,804.99
  4. Step 4: Simplify right side
    3,131.46x = 7,798,320.37
  5. Step 5: Solve for x
    x = 7,798,320.37/3,131.46
  6. Step 6: Final answer
    x = 2,490.31

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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.