Home / 3,379.60-4,679.40-3,293.20

Finding the Fourth Proportional to 3,379.60, 4,679.40 and 3,293.20

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Solution

The fourth proportional to 3,379.60, 4,679.40 and 3,293.20 is: 4,559.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,379.60 : 4,679.40 = 3,293.20 : x
  2. Step 2: Convert to fraction form
    3,379.60/4,679.40 = 3,293.20/x
  3. Step 3: Cross multiply
    3,379.60x = 4,679.40 × 3,293.20
  4. Step 4: Simplify right side
    3,379.60x = 15,410,200.08
  5. Step 5: Solve for x
    x = 15,410,200.08/3,379.60
  6. Step 6: Final answer
    x = 4,559.77

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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.