Home / 2,520.10-3,780.15-2,092.42

Finding the Fourth Proportional to 2,520.10, 3,780.15 and 2,092.42

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Solution

The fourth proportional to 2,520.10, 3,780.15 and 2,092.42 is: 3,138.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,520.10 : 3,780.15 = 2,092.42 : x
  2. Step 2: Convert to fraction form
    2,520.10/3,780.15 = 2,092.42/x
  3. Step 3: Cross multiply
    2,520.10x = 3,780.15 × 2,092.42
  4. Step 4: Simplify right side
    2,520.10x = 7,909,661.46
  5. Step 5: Solve for x
    x = 7,909,661.46/2,520.10
  6. Step 6: Final answer
    x = 3,138.63

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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.