Home / 3,478.32-5,208.30-2,439.60

Finding the Fourth Proportional to 3,478.32, 5,208.30 and 2,439.60

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Solution

The fourth proportional to 3,478.32, 5,208.30 and 2,439.60 is: 3,652.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478.32 : 5,208.30 = 2,439.60 : x
  2. Step 2: Convert to fraction form
    3,478.32/5,208.30 = 2,439.60/x
  3. Step 3: Cross multiply
    3,478.32x = 5,208.30 × 2,439.60
  4. Step 4: Simplify right side
    3,478.32x = 12,706,168.68
  5. Step 5: Solve for x
    x = 12,706,168.68/3,478.32
  6. Step 6: Final answer
    x = 3,652.96

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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.