Home / 1,872.11-2,582.92-1,086

Finding the Fourth Proportional to 1,872.11, 2,582.92 and 1,086

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Solution

The fourth proportional to 1,872.11, 2,582.92 and 1,086 is: 1,498.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,872.11 : 2,582.92 = 1,086 : x
  2. Step 2: Convert to fraction form
    1,872.11/2,582.92 = 1,086/x
  3. Step 3: Cross multiply
    1,872.11x = 2,582.92 × 1,086
  4. Step 4: Simplify right side
    1,872.11x = 2,805,048.41
  5. Step 5: Solve for x
    x = 2,805,048.41/1,872.11
  6. Step 6: Final answer
    x = 1,498.34

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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.