Home / 5,190.31-7,782.47-3,548.84

Finding the Fourth Proportional to 5,190.31, 7,782.47 and 3,548.84

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Solution

The fourth proportional to 5,190.31, 7,782.47 and 3,548.84 is: 5,321.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.31 : 7,782.47 = 3,548.84 : x
  2. Step 2: Convert to fraction form
    5,190.31/7,782.47 = 3,548.84/x
  3. Step 3: Cross multiply
    5,190.31x = 7,782.47 × 3,548.84
  4. Step 4: Simplify right side
    5,190.31x = 27,618,723.09
  5. Step 5: Solve for x
    x = 27,618,723.09/5,190.31
  6. Step 6: Final answer
    x = 5,321.21

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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.