Home / 2,779.43-3,836.76-2,070.02

Finding the Fourth Proportional to 2,779.43, 3,836.76 and 2,070.02

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Solution

The fourth proportional to 2,779.43, 3,836.76 and 2,070.02 is: 2,857.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,779.43 : 3,836.76 = 2,070.02 : x
  2. Step 2: Convert to fraction form
    2,779.43/3,836.76 = 2,070.02/x
  3. Step 3: Cross multiply
    2,779.43x = 3,836.76 × 2,070.02
  4. Step 4: Simplify right side
    2,779.43x = 7,942,169.94
  5. Step 5: Solve for x
    x = 7,942,169.94/2,779.43
  6. Step 6: Final answer
    x = 2,857.48

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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.