Home / 3,720.94-5,134.96-2,042.50

Finding the Fourth Proportional to 3,720.94, 5,134.96 and 2,042.50

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Solution

The fourth proportional to 3,720.94, 5,134.96 and 2,042.50 is: 2,818.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.94 : 5,134.96 = 2,042.50 : x
  2. Step 2: Convert to fraction form
    3,720.94/5,134.96 = 2,042.50/x
  3. Step 3: Cross multiply
    3,720.94x = 5,134.96 × 2,042.50
  4. Step 4: Simplify right side
    3,720.94x = 10,488,155.80
  5. Step 5: Solve for x
    x = 10,488,155.80/3,720.94
  6. Step 6: Final answer
    x = 2,818.68

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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.