Home / 1,582.18-2,183.61-961.54

Finding the Fourth Proportional to 1,582.18, 2,183.61 and 961.54

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Solution

The fourth proportional to 1,582.18, 2,183.61 and 961.54 is: 1,327.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,582.18 : 2,183.61 = 961.54 : x
  2. Step 2: Convert to fraction form
    1,582.18/2,183.61 = 961.54/x
  3. Step 3: Cross multiply
    1,582.18x = 2,183.61 × 961.54
  4. Step 4: Simplify right side
    1,582.18x = 2,099,628.36
  5. Step 5: Solve for x
    x = 2,099,628.36/1,582.18
  6. Step 6: Final answer
    x = 1,327.05

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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.