Home / 1,945.68-2,688.36-1,449.96

Finding the Fourth Proportional to 1,945.68, 2,688.36 and 1,449.96

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Solution

The fourth proportional to 1,945.68, 2,688.36 and 1,449.96 is: 2,003.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,945.68 : 2,688.36 = 1,449.96 : x
  2. Step 2: Convert to fraction form
    1,945.68/2,688.36 = 1,449.96/x
  3. Step 3: Cross multiply
    1,945.68x = 2,688.36 × 1,449.96
  4. Step 4: Simplify right side
    1,945.68x = 3,898,014.47
  5. Step 5: Solve for x
    x = 3,898,014.47/1,945.68
  6. Step 6: Final answer
    x = 2,003.42

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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.