Home / 5,213.56-7,187.28-3,222.98

Finding the Fourth Proportional to 5,213.56, 7,187.28 and 3,222.98

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Solution

The fourth proportional to 5,213.56, 7,187.28 and 3,222.98 is: 4,443.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,213.56 : 7,187.28 = 3,222.98 : x
  2. Step 2: Convert to fraction form
    5,213.56/7,187.28 = 3,222.98/x
  3. Step 3: Cross multiply
    5,213.56x = 7,187.28 × 3,222.98
  4. Step 4: Simplify right side
    5,213.56x = 23,164,459.69
  5. Step 5: Solve for x
    x = 23,164,459.69/5,213.56
  6. Step 6: Final answer
    x = 4,443.12

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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.