Home / 5,247.23-7,241.19-2,857.22

Finding the Fourth Proportional to 5,247.23, 7,241.19 and 2,857.22

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Solution

The fourth proportional to 5,247.23, 7,241.19 and 2,857.22 is: 3,942.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,247.23 : 7,241.19 = 2,857.22 : x
  2. Step 2: Convert to fraction form
    5,247.23/7,241.19 = 2,857.22/x
  3. Step 3: Cross multiply
    5,247.23x = 7,241.19 × 2,857.22
  4. Step 4: Simplify right side
    5,247.23x = 20,689,701.71
  5. Step 5: Solve for x
    x = 20,689,701.71/5,247.23
  6. Step 6: Final answer
    x = 3,942.97

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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.