Home / 5,342.72-7,999.70-3,489.23

Finding the Fourth Proportional to 5,342.72, 7,999.70 and 3,489.23

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Solution

The fourth proportional to 5,342.72, 7,999.70 and 3,489.23 is: 5,224.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,342.72 : 7,999.70 = 3,489.23 : x
  2. Step 2: Convert to fraction form
    5,342.72/7,999.70 = 3,489.23/x
  3. Step 3: Cross multiply
    5,342.72x = 7,999.70 × 3,489.23
  4. Step 4: Simplify right side
    5,342.72x = 27,912,795.78
  5. Step 5: Solve for x
    x = 27,912,795.78/5,342.72
  6. Step 6: Final answer
    x = 5,224.46

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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.