Home / 3,438.67-5,154.88-1,245.85

Finding the Fourth Proportional to 3,438.67, 5,154.88 and 1,245.85

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Solution

The fourth proportional to 3,438.67, 5,154.88 and 1,245.85 is: 1,867.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438.67 : 5,154.88 = 1,245.85 : x
  2. Step 2: Convert to fraction form
    3,438.67/5,154.88 = 1,245.85/x
  3. Step 3: Cross multiply
    3,438.67x = 5,154.88 × 1,245.85
  4. Step 4: Simplify right side
    3,438.67x = 6,422,207.25
  5. Step 5: Solve for x
    x = 6,422,207.25/3,438.67
  6. Step 6: Final answer
    x = 1,867.64

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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.