Home / 2,053.45-3,081.20-957.90

Finding the Fourth Proportional to 2,053.45, 3,081.20 and 957.90

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Solution

The fourth proportional to 2,053.45, 3,081.20 and 957.90 is: 1,437.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,053.45 : 3,081.20 = 957.90 : x
  2. Step 2: Convert to fraction form
    2,053.45/3,081.20 = 957.90/x
  3. Step 3: Cross multiply
    2,053.45x = 3,081.20 × 957.90
  4. Step 4: Simplify right side
    2,053.45x = 2,951,481.48
  5. Step 5: Solve for x
    x = 2,951,481.48/2,053.45
  6. Step 6: Final answer
    x = 1,437.33

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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.