Home / 2,830.69-4,246.26-1,187.74

Finding the Fourth Proportional to 2,830.69, 4,246.26 and 1,187.74

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Solution

The fourth proportional to 2,830.69, 4,246.26 and 1,187.74 is: 1,781.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,830.69 : 4,246.26 = 1,187.74 : x
  2. Step 2: Convert to fraction form
    2,830.69/4,246.26 = 1,187.74/x
  3. Step 3: Cross multiply
    2,830.69x = 4,246.26 × 1,187.74
  4. Step 4: Simplify right side
    2,830.69x = 5,043,452.85
  5. Step 5: Solve for x
    x = 5,043,452.85/2,830.69
  6. Step 6: Final answer
    x = 1,781.70

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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.