Home / 3,611.96-5,421.20-2,439.08

Finding the Fourth Proportional to 3,611.96, 5,421.20 and 2,439.08

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Solution

The fourth proportional to 3,611.96, 5,421.20 and 2,439.08 is: 3,660.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.96 : 5,421.20 = 2,439.08 : x
  2. Step 2: Convert to fraction form
    3,611.96/5,421.20 = 2,439.08/x
  3. Step 3: Cross multiply
    3,611.96x = 5,421.20 × 2,439.08
  4. Step 4: Simplify right side
    3,611.96x = 13,222,740.50
  5. Step 5: Solve for x
    x = 13,222,740.50/3,611.96
  6. Step 6: Final answer
    x = 3,660.82

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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.