Home / 5,226.12-7,840.26-1,940.76

Finding the Fourth Proportional to 5,226.12, 7,840.26 and 1,940.76

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Solution

The fourth proportional to 5,226.12, 7,840.26 and 1,940.76 is: 2,911.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,226.12 : 7,840.26 = 1,940.76 : x
  2. Step 2: Convert to fraction form
    5,226.12/7,840.26 = 1,940.76/x
  3. Step 3: Cross multiply
    5,226.12x = 7,840.26 × 1,940.76
  4. Step 4: Simplify right side
    5,226.12x = 15,216,063.00
  5. Step 5: Solve for x
    x = 15,216,063.00/5,226.12
  6. Step 6: Final answer
    x = 2,911.54

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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.