Home / 2,855.80-4,284.52-1,189.60

Finding the Fourth Proportional to 2,855.80, 4,284.52 and 1,189.60

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Solution

The fourth proportional to 2,855.80, 4,284.52 and 1,189.60 is: 1,784.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,855.80 : 4,284.52 = 1,189.60 : x
  2. Step 2: Convert to fraction form
    2,855.80/4,284.52 = 1,189.60/x
  3. Step 3: Cross multiply
    2,855.80x = 4,284.52 × 1,189.60
  4. Step 4: Simplify right side
    2,855.80x = 5,096,864.99
  5. Step 5: Solve for x
    x = 5,096,864.99/2,855.80
  6. Step 6: Final answer
    x = 1,784.74

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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.