Home / 6,724.75-9,280.16-3,780.75

Finding the Fourth Proportional to 6,724.75, 9,280.16 and 3,780.75

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Solution

The fourth proportional to 6,724.75, 9,280.16 and 3,780.75 is: 5,217.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,724.75 : 9,280.16 = 3,780.75 : x
  2. Step 2: Convert to fraction form
    6,724.75/9,280.16 = 3,780.75/x
  3. Step 3: Cross multiply
    6,724.75x = 9,280.16 × 3,780.75
  4. Step 4: Simplify right side
    6,724.75x = 35,085,946.02
  5. Step 5: Solve for x
    x = 35,085,946.02/6,724.75
  6. Step 6: Final answer
    x = 5,217.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.