Home / 5,213.28-7,200.72-4,219.68

Finding the Fourth Proportional to 5,213.28, 7,200.72 and 4,219.68

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Solution

The fourth proportional to 5,213.28, 7,200.72 and 4,219.68 is: 5,828.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,213.28 : 7,200.72 = 4,219.68 : x
  2. Step 2: Convert to fraction form
    5,213.28/7,200.72 = 4,219.68/x
  3. Step 3: Cross multiply
    5,213.28x = 7,200.72 × 4,219.68
  4. Step 4: Simplify right side
    5,213.28x = 30,384,734.17
  5. Step 5: Solve for x
    x = 30,384,734.17/5,213.28
  6. Step 6: Final answer
    x = 5,828.33

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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.