Home / 2,116.69-3,177.09-1,021.83

Finding the Fourth Proportional to 2,116.69, 3,177.09 and 1,021.83

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Solution

The fourth proportional to 2,116.69, 3,177.09 and 1,021.83 is: 1,533.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116.69 : 3,177.09 = 1,021.83 : x
  2. Step 2: Convert to fraction form
    2,116.69/3,177.09 = 1,021.83/x
  3. Step 3: Cross multiply
    2,116.69x = 3,177.09 × 1,021.83
  4. Step 4: Simplify right side
    2,116.69x = 3,246,445.87
  5. Step 5: Solve for x
    x = 3,246,445.87/2,116.69
  6. Step 6: Final answer
    x = 1,533.74

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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.