Home / 3,322.13-4,582.78-1,976.78

Finding the Fourth Proportional to 3,322.13, 4,582.78 and 1,976.78

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Solution

The fourth proportional to 3,322.13, 4,582.78 and 1,976.78 is: 2,726.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,322.13 : 4,582.78 = 1,976.78 : x
  2. Step 2: Convert to fraction form
    3,322.13/4,582.78 = 1,976.78/x
  3. Step 3: Cross multiply
    3,322.13x = 4,582.78 × 1,976.78
  4. Step 4: Simplify right side
    3,322.13x = 9,059,137.96
  5. Step 5: Solve for x
    x = 9,059,137.96/3,322.13
  6. Step 6: Final answer
    x = 2,726.91

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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.