Home / 5,243.74-7,236.21-2,885.83

Finding the Fourth Proportional to 5,243.74, 7,236.21 and 2,885.83

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Solution

The fourth proportional to 5,243.74, 7,236.21 and 2,885.83 is: 3,982.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,243.74 : 7,236.21 = 2,885.83 : x
  2. Step 2: Convert to fraction form
    5,243.74/7,236.21 = 2,885.83/x
  3. Step 3: Cross multiply
    5,243.74x = 7,236.21 × 2,885.83
  4. Step 4: Simplify right side
    5,243.74x = 20,882,471.90
  5. Step 5: Solve for x
    x = 20,882,471.90/5,243.74
  6. Step 6: Final answer
    x = 3,982.36

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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.