Home / 2,519.10-3,778.65-2,091.42

Finding the Fourth Proportional to 2,519.10, 3,778.65 and 2,091.42

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Solution

The fourth proportional to 2,519.10, 3,778.65 and 2,091.42 is: 3,137.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,519.10 : 3,778.65 = 2,091.42 : x
  2. Step 2: Convert to fraction form
    2,519.10/3,778.65 = 2,091.42/x
  3. Step 3: Cross multiply
    2,519.10x = 3,778.65 × 2,091.42
  4. Step 4: Simplify right side
    2,519.10x = 7,902,744.18
  5. Step 5: Solve for x
    x = 7,902,744.18/2,519.10
  6. Step 6: Final answer
    x = 3,137.13

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1.5x scale

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.