Home / 3,228.08-4,842.60-1,379.20

Finding the Fourth Proportional to 3,228.08, 4,842.60 and 1,379.20

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Solution

The fourth proportional to 3,228.08, 4,842.60 and 1,379.20 is: 2,069.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,228.08 : 4,842.60 = 1,379.20 : x
  2. Step 2: Convert to fraction form
    3,228.08/4,842.60 = 1,379.20/x
  3. Step 3: Cross multiply
    3,228.08x = 4,842.60 × 1,379.20
  4. Step 4: Simplify right side
    3,228.08x = 6,678,913.92
  5. Step 5: Solve for x
    x = 6,678,913.92/3,228.08
  6. Step 6: Final answer
    x = 2,069.01

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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.