Home / 2,841.31-3,921.20-1,582.35

Finding the Fourth Proportional to 2,841.31, 3,921.20 and 1,582.35

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Solution

The fourth proportional to 2,841.31, 3,921.20 and 1,582.35 is: 2,183.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,841.31 : 3,921.20 = 1,582.35 : x
  2. Step 2: Convert to fraction form
    2,841.31/3,921.20 = 1,582.35/x
  3. Step 3: Cross multiply
    2,841.31x = 3,921.20 × 1,582.35
  4. Step 4: Simplify right side
    2,841.31x = 6,204,710.82
  5. Step 5: Solve for x
    x = 6,204,710.82/2,841.31
  6. Step 6: Final answer
    x = 2,183.75

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1.5x scale

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.