Home / 4,087.28-5,638.62-3,141.38

Finding the Fourth Proportional to 4,087.28, 5,638.62 and 3,141.38

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Solution

The fourth proportional to 4,087.28, 5,638.62 and 3,141.38 is: 4,333.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,087.28 : 5,638.62 = 3,141.38 : x
  2. Step 2: Convert to fraction form
    4,087.28/5,638.62 = 3,141.38/x
  3. Step 3: Cross multiply
    4,087.28x = 5,638.62 × 3,141.38
  4. Step 4: Simplify right side
    4,087.28x = 17,713,048.10
  5. Step 5: Solve for x
    x = 17,713,048.10/4,087.28
  6. Step 6: Final answer
    x = 4,333.70

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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.