Home / 5,215.35-7,197.33-3,171.25

Finding the Fourth Proportional to 5,215.35, 7,197.33 and 3,171.25

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Solution

The fourth proportional to 5,215.35, 7,197.33 and 3,171.25 is: 4,376.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,215.35 : 7,197.33 = 3,171.25 : x
  2. Step 2: Convert to fraction form
    5,215.35/7,197.33 = 3,171.25/x
  3. Step 3: Cross multiply
    5,215.35x = 7,197.33 × 3,171.25
  4. Step 4: Simplify right side
    5,215.35x = 22,824,532.76
  5. Step 5: Solve for x
    x = 22,824,532.76/5,215.35
  6. Step 6: Final answer
    x = 4,376.41

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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.