Home / 1,921.04-2,649.62-1,323.73

Finding the Fourth Proportional to 1,921.04, 2,649.62 and 1,323.73

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Solution

The fourth proportional to 1,921.04, 2,649.62 and 1,323.73 is: 1,825.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921.04 : 2,649.62 = 1,323.73 : x
  2. Step 2: Convert to fraction form
    1,921.04/2,649.62 = 1,323.73/x
  3. Step 3: Cross multiply
    1,921.04x = 2,649.62 × 1,323.73
  4. Step 4: Simplify right side
    1,921.04x = 3,507,374.86
  5. Step 5: Solve for x
    x = 3,507,374.86/1,921.04
  6. Step 6: Final answer
    x = 1,825.77

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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.