Home / 5,231.09-7,222.28-3,243.75

Finding the Fourth Proportional to 5,231.09, 7,222.28 and 3,243.75

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Solution

The fourth proportional to 5,231.09, 7,222.28 and 3,243.75 is: 4,478.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,231.09 : 7,222.28 = 3,243.75 : x
  2. Step 2: Convert to fraction form
    5,231.09/7,222.28 = 3,243.75/x
  3. Step 3: Cross multiply
    5,231.09x = 7,222.28 × 3,243.75
  4. Step 4: Simplify right side
    5,231.09x = 23,427,254.53
  5. Step 5: Solve for x
    x = 23,427,254.53/5,231.09
  6. Step 6: Final answer
    x = 4,478.47

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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.