Home / 2,115.22-2,921.79-1,623.93

Finding the Fourth Proportional to 2,115.22, 2,921.79 and 1,623.93

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Solution

The fourth proportional to 2,115.22, 2,921.79 and 1,623.93 is: 2,243.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,115.22 : 2,921.79 = 1,623.93 : x
  2. Step 2: Convert to fraction form
    2,115.22/2,921.79 = 1,623.93/x
  3. Step 3: Cross multiply
    2,115.22x = 2,921.79 × 1,623.93
  4. Step 4: Simplify right side
    2,115.22x = 4,744,782.43
  5. Step 5: Solve for x
    x = 4,744,782.43/2,115.22
  6. Step 6: Final answer
    x = 2,243.16

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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.