Home / 4,771.50-7,148.91-3,311.58

Finding the Fourth Proportional to 4,771.50, 7,148.91 and 3,311.58

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Solution

The fourth proportional to 4,771.50, 7,148.91 and 3,311.58 is: 4,961.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,771.50 : 7,148.91 = 3,311.58 : x
  2. Step 2: Convert to fraction form
    4,771.50/7,148.91 = 3,311.58/x
  3. Step 3: Cross multiply
    4,771.50x = 7,148.91 × 3,311.58
  4. Step 4: Simplify right side
    4,771.50x = 23,674,187.38
  5. Step 5: Solve for x
    x = 23,674,187.38/4,771.50
  6. Step 6: Final answer
    x = 4,961.58

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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.