Home / 4,930.70-7,396.89-2,157.31

Finding the Fourth Proportional to 4,930.70, 7,396.89 and 2,157.31

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Solution

The fourth proportional to 4,930.70, 7,396.89 and 2,157.31 is: 3,236.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,930.70 : 7,396.89 = 2,157.31 : x
  2. Step 2: Convert to fraction form
    4,930.70/7,396.89 = 2,157.31/x
  3. Step 3: Cross multiply
    4,930.70x = 7,396.89 × 2,157.31
  4. Step 4: Simplify right side
    4,930.70x = 15,957,384.77
  5. Step 5: Solve for x
    x = 15,957,384.77/4,930.70
  6. Step 6: Final answer
    x = 3,236.33

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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.