Home / 2,784.09-4,176.59-1,322.75

Finding the Fourth Proportional to 2,784.09, 4,176.59 and 1,322.75

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Solution

The fourth proportional to 2,784.09, 4,176.59 and 1,322.75 is: 1,984.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,784.09 : 4,176.59 = 1,322.75 : x
  2. Step 2: Convert to fraction form
    2,784.09/4,176.59 = 1,322.75/x
  3. Step 3: Cross multiply
    2,784.09x = 4,176.59 × 1,322.75
  4. Step 4: Simplify right side
    2,784.09x = 5,524,564.76
  5. Step 5: Solve for x
    x = 5,524,564.76/2,784.09
  6. Step 6: Final answer
    x = 1,984.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.