Home / 6,813.20-10,219.80-3,527.30

Finding the Fourth Proportional to 6,813.20, 10,219.80 and 3,527.30

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Solution

The fourth proportional to 6,813.20, 10,219.80 and 3,527.30 is: 5,290.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,813.20 : 10,219.80 = 3,527.30 : x
  2. Step 2: Convert to fraction form
    6,813.20/10,219.80 = 3,527.30/x
  3. Step 3: Cross multiply
    6,813.20x = 10,219.80 × 3,527.30
  4. Step 4: Simplify right side
    6,813.20x = 36,048,300.54
  5. Step 5: Solve for x
    x = 36,048,300.54/6,813.20
  6. Step 6: Final answer
    x = 5,290.95

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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.