Home / 5,243.57-7,236.27-2,885.86

Finding the Fourth Proportional to 5,243.57, 7,236.27 and 2,885.86

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Solution

The fourth proportional to 5,243.57, 7,236.27 and 2,885.86 is: 3,982.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,243.57 : 7,236.27 = 2,885.86 : x
  2. Step 2: Convert to fraction form
    5,243.57/7,236.27 = 2,885.86/x
  3. Step 3: Cross multiply
    5,243.57x = 7,236.27 × 2,885.86
  4. Step 4: Simplify right side
    5,243.57x = 20,882,862.14
  5. Step 5: Solve for x
    x = 20,882,862.14/5,243.57
  6. Step 6: Final answer
    x = 3,982.57

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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.