Home / 4,661.28-6,431.28-3,243.38

Finding the Fourth Proportional to 4,661.28, 6,431.28 and 3,243.38

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Solution

The fourth proportional to 4,661.28, 6,431.28 and 3,243.38 is: 4,474.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,661.28 : 6,431.28 = 3,243.38 : x
  2. Step 2: Convert to fraction form
    4,661.28/6,431.28 = 3,243.38/x
  3. Step 3: Cross multiply
    4,661.28x = 6,431.28 × 3,243.38
  4. Step 4: Simplify right side
    4,661.28x = 20,859,052.77
  5. Step 5: Solve for x
    x = 20,859,052.77/4,661.28
  6. Step 6: Final answer
    x = 4,474.96

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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.