Home / 2,309.80-3,180.73-1,956.24

Finding the Fourth Proportional to 2,309.80, 3,180.73 and 1,956.24

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Solution

The fourth proportional to 2,309.80, 3,180.73 and 1,956.24 is: 2,693.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,309.80 : 3,180.73 = 1,956.24 : x
  2. Step 2: Convert to fraction form
    2,309.80/3,180.73 = 1,956.24/x
  3. Step 3: Cross multiply
    2,309.80x = 3,180.73 × 1,956.24
  4. Step 4: Simplify right side
    2,309.80x = 6,222,271.26
  5. Step 5: Solve for x
    x = 6,222,271.26/2,309.80
  6. Step 6: Final answer
    x = 2,693.86

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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.