Home / 3,620.28-4,998.23-2,779.37

Finding the Fourth Proportional to 3,620.28, 4,998.23 and 2,779.37

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Solution

The fourth proportional to 3,620.28, 4,998.23 and 2,779.37 is: 3,837.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,620.28 : 4,998.23 = 2,779.37 : x
  2. Step 2: Convert to fraction form
    3,620.28/4,998.23 = 2,779.37/x
  3. Step 3: Cross multiply
    3,620.28x = 4,998.23 × 2,779.37
  4. Step 4: Simplify right side
    3,620.28x = 13,891,930.52
  5. Step 5: Solve for x
    x = 13,891,930.52/3,620.28
  6. Step 6: Final answer
    x = 3,837.25

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1.5x scale

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.