Home / 1,872.68-2,582.90-1,789.96

Finding the Fourth Proportional to 1,872.68, 2,582.90 and 1,789.96

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Solution

The fourth proportional to 1,872.68, 2,582.90 and 1,789.96 is: 2,468.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,872.68 : 2,582.90 = 1,789.96 : x
  2. Step 2: Convert to fraction form
    1,872.68/2,582.90 = 1,789.96/x
  3. Step 3: Cross multiply
    1,872.68x = 2,582.90 × 1,789.96
  4. Step 4: Simplify right side
    1,872.68x = 4,623,287.68
  5. Step 5: Solve for x
    x = 4,623,287.68/1,872.68
  6. Step 6: Final answer
    x = 2,468.81

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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.