Home / 2,582.31-3,871.85-1,879.77

Finding the Fourth Proportional to 2,582.31, 3,871.85 and 1,879.77

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Solution

The fourth proportional to 2,582.31, 3,871.85 and 1,879.77 is: 2,818.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,582.31 : 3,871.85 = 1,879.77 : x
  2. Step 2: Convert to fraction form
    2,582.31/3,871.85 = 1,879.77/x
  3. Step 3: Cross multiply
    2,582.31x = 3,871.85 × 1,879.77
  4. Step 4: Simplify right side
    2,582.31x = 7,278,187.47
  5. Step 5: Solve for x
    x = 7,278,187.47/2,582.31
  6. Step 6: Final answer
    x = 2,818.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.