Home / 2,982.81-4,117.91-2,285.37

Finding the Fourth Proportional to 2,982.81, 4,117.91 and 2,285.37

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Solution

The fourth proportional to 2,982.81, 4,117.91 and 2,285.37 is: 3,155.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,982.81 : 4,117.91 = 2,285.37 : x
  2. Step 2: Convert to fraction form
    2,982.81/4,117.91 = 2,285.37/x
  3. Step 3: Cross multiply
    2,982.81x = 4,117.91 × 2,285.37
  4. Step 4: Simplify right side
    2,982.81x = 9,410,936.55
  5. Step 5: Solve for x
    x = 9,410,936.55/2,982.81
  6. Step 6: Final answer
    x = 3,155.06

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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.