Home / 5,079.50-7,620.60-1,616.75

Finding the Fourth Proportional to 5,079.50, 7,620.60 and 1,616.75

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Solution

The fourth proportional to 5,079.50, 7,620.60 and 1,616.75 is: 2,425.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,079.50 : 7,620.60 = 1,616.75 : x
  2. Step 2: Convert to fraction form
    5,079.50/7,620.60 = 1,616.75/x
  3. Step 3: Cross multiply
    5,079.50x = 7,620.60 × 1,616.75
  4. Step 4: Simplify right side
    5,079.50x = 12,320,605.05
  5. Step 5: Solve for x
    x = 12,320,605.05/5,079.50
  6. Step 6: Final answer
    x = 2,425.55

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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.