Home / 2,939.22-4,400.73-2,070.90

Finding the Fourth Proportional to 2,939.22, 4,400.73 and 2,070.90

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Solution

The fourth proportional to 2,939.22, 4,400.73 and 2,070.90 is: 3,100.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.22 : 4,400.73 = 2,070.90 : x
  2. Step 2: Convert to fraction form
    2,939.22/4,400.73 = 2,070.90/x
  3. Step 3: Cross multiply
    2,939.22x = 4,400.73 × 2,070.90
  4. Step 4: Simplify right side
    2,939.22x = 9,113,471.76
  5. Step 5: Solve for x
    x = 9,113,471.76/2,939.22
  6. Step 6: Final answer
    x = 3,100.64

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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.