Home / 5,231.88-7,220.34-3,659.40

Finding the Fourth Proportional to 5,231.88, 7,220.34 and 3,659.40

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Solution

The fourth proportional to 5,231.88, 7,220.34 and 3,659.40 is: 5,050.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,231.88 : 7,220.34 = 3,659.40 : x
  2. Step 2: Convert to fraction form
    5,231.88/7,220.34 = 3,659.40/x
  3. Step 3: Cross multiply
    5,231.88x = 7,220.34 × 3,659.40
  4. Step 4: Simplify right side
    5,231.88x = 26,422,112.20
  5. Step 5: Solve for x
    x = 26,422,112.20/5,231.88
  6. Step 6: Final answer
    x = 5,050.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.