Home / 4,930.80-7,389.96-2,156.73

Finding the Fourth Proportional to 4,930.80, 7,389.96 and 2,156.73

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Solution

The fourth proportional to 4,930.80, 7,389.96 and 2,156.73 is: 3,232.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,930.80 : 7,389.96 = 2,156.73 : x
  2. Step 2: Convert to fraction form
    4,930.80/7,389.96 = 2,156.73/x
  3. Step 3: Cross multiply
    4,930.80x = 7,389.96 × 2,156.73
  4. Step 4: Simplify right side
    4,930.80x = 15,938,148.43
  5. Step 5: Solve for x
    x = 15,938,148.43/4,930.80
  6. Step 6: Final answer
    x = 3,232.37

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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.