Home / 2,845.62-3,926.81-1,586.81

Finding the Fourth Proportional to 2,845.62, 3,926.81 and 1,586.81

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Solution

The fourth proportional to 2,845.62, 3,926.81 and 1,586.81 is: 2,189.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,845.62 : 3,926.81 = 1,586.81 : x
  2. Step 2: Convert to fraction form
    2,845.62/3,926.81 = 1,586.81/x
  3. Step 3: Cross multiply
    2,845.62x = 3,926.81 × 1,586.81
  4. Step 4: Simplify right side
    2,845.62x = 6,231,073.81
  5. Step 5: Solve for x
    x = 6,231,073.81/2,845.62
  6. Step 6: Final answer
    x = 2,189.71

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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.