Home / 2,311.68-3,461.40-1,945.56

Finding the Fourth Proportional to 2,311.68, 3,461.40 and 1,945.56

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Solution

The fourth proportional to 2,311.68, 3,461.40 and 1,945.56 is: 2,913.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,311.68 : 3,461.40 = 1,945.56 : x
  2. Step 2: Convert to fraction form
    2,311.68/3,461.40 = 1,945.56/x
  3. Step 3: Cross multiply
    2,311.68x = 3,461.40 × 1,945.56
  4. Step 4: Simplify right side
    2,311.68x = 6,734,361.38
  5. Step 5: Solve for x
    x = 6,734,361.38/2,311.68
  6. Step 6: Final answer
    x = 2,913.19

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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.