Home / 1,984.32-2,739.78-1,322.73

Finding the Fourth Proportional to 1,984.32, 2,739.78 and 1,322.73

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Solution

The fourth proportional to 1,984.32, 2,739.78 and 1,322.73 is: 1,826.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,984.32 : 2,739.78 = 1,322.73 : x
  2. Step 2: Convert to fraction form
    1,984.32/2,739.78 = 1,322.73/x
  3. Step 3: Cross multiply
    1,984.32x = 2,739.78 × 1,322.73
  4. Step 4: Simplify right side
    1,984.32x = 3,623,989.20
  5. Step 5: Solve for x
    x = 3,623,989.20/1,984.32
  6. Step 6: Final answer
    x = 1,826.31

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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.