Home / 2,940.60-4,387.92-2,629.86

Finding the Fourth Proportional to 2,940.60, 4,387.92 and 2,629.86

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Solution

The fourth proportional to 2,940.60, 4,387.92 and 2,629.86 is: 3,924.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,940.60 : 4,387.92 = 2,629.86 : x
  2. Step 2: Convert to fraction form
    2,940.60/4,387.92 = 2,629.86/x
  3. Step 3: Cross multiply
    2,940.60x = 4,387.92 × 2,629.86
  4. Step 4: Simplify right side
    2,940.60x = 11,539,615.29
  5. Step 5: Solve for x
    x = 11,539,615.29/2,940.60
  6. Step 6: Final answer
    x = 3,924.24

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.