Home / 7,226.18-10,840.00-1,961.28

Finding the Fourth Proportional to 7,226.18, 10,840.00 and 1,961.28

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Solution

The fourth proportional to 7,226.18, 10,840.00 and 1,961.28 is: 2,942.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,226.18 : 10,840.00 = 1,961.28 : x
  2. Step 2: Convert to fraction form
    7,226.18/10,840.00 = 1,961.28/x
  3. Step 3: Cross multiply
    7,226.18x = 10,840.00 × 1,961.28
  4. Step 4: Simplify right side
    7,226.18x = 21,260,270.30
  5. Step 5: Solve for x
    x = 21,260,270.30/7,226.18
  6. Step 6: Final answer
    x = 2,942.12

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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.