Home / 5,078.57-7,618.19-1,958.60

Finding the Fourth Proportional to 5,078.57, 7,618.19 and 1,958.60

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Solution

The fourth proportional to 5,078.57, 7,618.19 and 1,958.60 is: 2,938.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,078.57 : 7,618.19 = 1,958.60 : x
  2. Step 2: Convert to fraction form
    5,078.57/7,618.19 = 1,958.60/x
  3. Step 3: Cross multiply
    5,078.57x = 7,618.19 × 1,958.60
  4. Step 4: Simplify right side
    5,078.57x = 14,920,996.19
  5. Step 5: Solve for x
    x = 14,920,996.19/5,078.57
  6. Step 6: Final answer
    x = 2,938.03

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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.