Home / 3,611.96-5,421.56-2,438.24

Finding the Fourth Proportional to 3,611.96, 5,421.56 and 2,438.24

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Solution

The fourth proportional to 3,611.96, 5,421.56 and 2,438.24 is: 3,659.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.96 : 5,421.56 = 2,438.24 : x
  2. Step 2: Convert to fraction form
    3,611.96/5,421.56 = 2,438.24/x
  3. Step 3: Cross multiply
    3,611.96x = 5,421.56 × 2,438.24
  4. Step 4: Simplify right side
    3,611.96x = 13,219,064.45
  5. Step 5: Solve for x
    x = 13,219,064.45/3,611.96
  6. Step 6: Final answer
    x = 3,659.80

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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.