Home / 7,930.50-11,895.75-2,458.50

Finding the Fourth Proportional to 7,930.50, 11,895.75 and 2,458.50

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Solution

The fourth proportional to 7,930.50, 11,895.75 and 2,458.50 is: 3,687.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,930.50 : 11,895.75 = 2,458.50 : x
  2. Step 2: Convert to fraction form
    7,930.50/11,895.75 = 2,458.50/x
  3. Step 3: Cross multiply
    7,930.50x = 11,895.75 × 2,458.50
  4. Step 4: Simplify right side
    7,930.50x = 29,245,701.38
  5. Step 5: Solve for x
    x = 29,245,701.38/7,930.50
  6. Step 6: Final answer
    x = 3,687.75

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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.