Home / 3,438.28-5,157.60-2,617.84

Finding the Fourth Proportional to 3,438.28, 5,157.60 and 2,617.84

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Solution

The fourth proportional to 3,438.28, 5,157.60 and 2,617.84 is: 3,926.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438.28 : 5,157.60 = 2,617.84 : x
  2. Step 2: Convert to fraction form
    3,438.28/5,157.60 = 2,617.84/x
  3. Step 3: Cross multiply
    3,438.28x = 5,157.60 × 2,617.84
  4. Step 4: Simplify right side
    3,438.28x = 13,501,771.58
  5. Step 5: Solve for x
    x = 13,501,771.58/3,438.28
  6. Step 6: Final answer
    x = 3,926.90

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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.