Home / 2,845.10-3,926-1,666.56

Finding the Fourth Proportional to 2,845.10, 3,926 and 1,666.56

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Solution

The fourth proportional to 2,845.10, 3,926 and 1,666.56 is: 2,299.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,845.10 : 3,926 = 1,666.56 : x
  2. Step 2: Convert to fraction form
    2,845.10/3,926 = 1,666.56/x
  3. Step 3: Cross multiply
    2,845.10x = 3,926 × 1,666.56
  4. Step 4: Simplify right side
    2,845.10x = 6,542,914.56
  5. Step 5: Solve for x
    x = 6,542,914.56/2,845.10
  6. Step 6: Final answer
    x = 2,299.71

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1.5x scale

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.