Home / 6,142.71-8,476.62-3,489.75

Finding the Fourth Proportional to 6,142.71, 8,476.62 and 3,489.75

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Solution

The fourth proportional to 6,142.71, 8,476.62 and 3,489.75 is: 4,815.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,142.71 : 8,476.62 = 3,489.75 : x
  2. Step 2: Convert to fraction form
    6,142.71/8,476.62 = 3,489.75/x
  3. Step 3: Cross multiply
    6,142.71x = 8,476.62 × 3,489.75
  4. Step 4: Simplify right side
    6,142.71x = 29,581,284.65
  5. Step 5: Solve for x
    x = 29,581,284.65/6,142.71
  6. Step 6: Final answer
    x = 4,815.67

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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.