Home / 6,230.20-9,345.30-5,428.30

Finding the Fourth Proportional to 6,230.20, 9,345.30 and 5,428.30

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Solution

The fourth proportional to 6,230.20, 9,345.30 and 5,428.30 is: 8,142.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,230.20 : 9,345.30 = 5,428.30 : x
  2. Step 2: Convert to fraction form
    6,230.20/9,345.30 = 5,428.30/x
  3. Step 3: Cross multiply
    6,230.20x = 9,345.30 × 5,428.30
  4. Step 4: Simplify right side
    6,230.20x = 50,729,091.99
  5. Step 5: Solve for x
    x = 50,729,091.99/6,230.20
  6. Step 6: Final answer
    x = 8,142.45

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Similar ratio
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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.