Home / 5,231.68-7,220.00-3,460.21

Finding the Fourth Proportional to 5,231.68, 7,220.00 and 3,460.21

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Solution

The fourth proportional to 5,231.68, 7,220.00 and 3,460.21 is: 4,775.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,231.68 : 7,220.00 = 3,460.21 : x
  2. Step 2: Convert to fraction form
    5,231.68/7,220.00 = 3,460.21/x
  3. Step 3: Cross multiply
    5,231.68x = 7,220.00 × 3,460.21
  4. Step 4: Simplify right side
    5,231.68x = 24,982,706.80
  5. Step 5: Solve for x
    x = 24,982,706.80/5,231.68
  6. Step 6: Final answer
    x = 4,775.28

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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.