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Finding the Fourth Proportional to 2,576.81, 3,865.73 and 933.42

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Solution

The fourth proportional to 2,576.81, 3,865.73 and 933.42 is: 1,400.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,576.81 : 3,865.73 = 933.42 : x
  2. Step 2: Convert to fraction form
    2,576.81/3,865.73 = 933.42/x
  3. Step 3: Cross multiply
    2,576.81x = 3,865.73 × 933.42
  4. Step 4: Simplify right side
    2,576.81x = 3,608,359.53
  5. Step 5: Solve for x
    x = 3,608,359.53/2,576.81
  6. Step 6: Final answer
    x = 1,400.32

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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.