Home / 2,841.40-3,921.18-1,582.48

Finding the Fourth Proportional to 2,841.40, 3,921.18 and 1,582.48

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Solution

The fourth proportional to 2,841.40, 3,921.18 and 1,582.48 is: 2,183.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,841.40 : 3,921.18 = 1,582.48 : x
  2. Step 2: Convert to fraction form
    2,841.40/3,921.18 = 1,582.48/x
  3. Step 3: Cross multiply
    2,841.40x = 3,921.18 × 1,582.48
  4. Step 4: Simplify right side
    2,841.40x = 6,205,188.93
  5. Step 5: Solve for x
    x = 6,205,188.93/2,841.40
  6. Step 6: Final answer
    x = 2,183.85

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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.