Home / 4,812.57-7,222.98-3,429.30

Finding the Fourth Proportional to 4,812.57, 7,222.98 and 3,429.30

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Solution

The fourth proportional to 4,812.57, 7,222.98 and 3,429.30 is: 5,146.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,812.57 : 7,222.98 = 3,429.30 : x
  2. Step 2: Convert to fraction form
    4,812.57/7,222.98 = 3,429.30/x
  3. Step 3: Cross multiply
    4,812.57x = 7,222.98 × 3,429.30
  4. Step 4: Simplify right side
    4,812.57x = 24,769,765.31
  5. Step 5: Solve for x
    x = 24,769,765.31/4,812.57
  6. Step 6: Final answer
    x = 5,146.89

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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.