Home / 3,841.90-5,767.45-2,605.56

Finding the Fourth Proportional to 3,841.90, 5,767.45 and 2,605.56

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Solution

The fourth proportional to 3,841.90, 5,767.45 and 2,605.56 is: 3,911.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,841.90 : 5,767.45 = 2,605.56 : x
  2. Step 2: Convert to fraction form
    3,841.90/5,767.45 = 2,605.56/x
  3. Step 3: Cross multiply
    3,841.90x = 5,767.45 × 2,605.56
  4. Step 4: Simplify right side
    3,841.90x = 15,027,408.88
  5. Step 5: Solve for x
    x = 15,027,408.88/3,841.90
  6. Step 6: Final answer
    x = 3,911.45

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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.