Home / 5,974.28-8,243.46-4,087.40

Finding the Fourth Proportional to 5,974.28, 8,243.46 and 4,087.40

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Solution

The fourth proportional to 5,974.28, 8,243.46 and 4,087.40 is: 5,639.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,974.28 : 8,243.46 = 4,087.40 : x
  2. Step 2: Convert to fraction form
    5,974.28/8,243.46 = 4,087.40/x
  3. Step 3: Cross multiply
    5,974.28x = 8,243.46 × 4,087.40
  4. Step 4: Simplify right side
    5,974.28x = 33,694,318.40
  5. Step 5: Solve for x
    x = 33,694,318.40/5,974.28
  6. Step 6: Final answer
    x = 5,639.90

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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.