Home / 2,982.49-4,470.81-1,422.07

Finding the Fourth Proportional to 2,982.49, 4,470.81 and 1,422.07

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Solution

The fourth proportional to 2,982.49, 4,470.81 and 1,422.07 is: 2,131.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,982.49 : 4,470.81 = 1,422.07 : x
  2. Step 2: Convert to fraction form
    2,982.49/4,470.81 = 1,422.07/x
  3. Step 3: Cross multiply
    2,982.49x = 4,470.81 × 1,422.07
  4. Step 4: Simplify right side
    2,982.49x = 6,357,804.78
  5. Step 5: Solve for x
    x = 6,357,804.78/2,982.49
  6. Step 6: Final answer
    x = 2,131.71

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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.