Home / 5,226.75-7,839.90-1,331.04

Finding the Fourth Proportional to 5,226.75, 7,839.90 and 1,331.04

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Solution

The fourth proportional to 5,226.75, 7,839.90 and 1,331.04 is: 1,996.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,226.75 : 7,839.90 = 1,331.04 : x
  2. Step 2: Convert to fraction form
    5,226.75/7,839.90 = 1,331.04/x
  3. Step 3: Cross multiply
    5,226.75x = 7,839.90 × 1,331.04
  4. Step 4: Simplify right side
    5,226.75x = 10,435,220.50
  5. Step 5: Solve for x
    x = 10,435,220.50/5,226.75
  6. Step 6: Final answer
    x = 1,996.50

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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.