Home / 4,780.12-7,170.91-2,438.85

Finding the Fourth Proportional to 4,780.12, 7,170.91 and 2,438.85

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Solution

The fourth proportional to 4,780.12, 7,170.91 and 2,438.85 is: 3,658.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,780.12 : 7,170.91 = 2,438.85 : x
  2. Step 2: Convert to fraction form
    4,780.12/7,170.91 = 2,438.85/x
  3. Step 3: Cross multiply
    4,780.12x = 7,170.91 × 2,438.85
  4. Step 4: Simplify right side
    4,780.12x = 17,488,758.88
  5. Step 5: Solve for x
    x = 17,488,758.88/4,780.12
  6. Step 6: Final answer
    x = 3,658.64

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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.