Home / 4,191.28-6,287.70-1,380.27

Finding the Fourth Proportional to 4,191.28, 6,287.70 and 1,380.27

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Solution

The fourth proportional to 4,191.28, 6,287.70 and 1,380.27 is: 2,070.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,191.28 : 6,287.70 = 1,380.27 : x
  2. Step 2: Convert to fraction form
    4,191.28/6,287.70 = 1,380.27/x
  3. Step 3: Cross multiply
    4,191.28x = 6,287.70 × 1,380.27
  4. Step 4: Simplify right side
    4,191.28x = 8,678,742.08
  5. Step 5: Solve for x
    x = 8,678,742.08/4,191.28
  6. Step 6: Final answer
    x = 2,070.67

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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.