Home / 5,321.31-7,977.93-3,240.93

Finding the Fourth Proportional to 5,321.31, 7,977.93 and 3,240.93

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Solution

The fourth proportional to 5,321.31, 7,977.93 and 3,240.93 is: 4,858.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,321.31 : 7,977.93 = 3,240.93 : x
  2. Step 2: Convert to fraction form
    5,321.31/7,977.93 = 3,240.93/x
  3. Step 3: Cross multiply
    5,321.31x = 7,977.93 × 3,240.93
  4. Step 4: Simplify right side
    5,321.31x = 25,855,912.67
  5. Step 5: Solve for x
    x = 25,855,912.67/5,321.31
  6. Step 6: Final answer
    x = 4,858.94

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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.