Home / 7,242.78-10,863.27-2,312.94

Finding the Fourth Proportional to 7,242.78, 10,863.27 and 2,312.94

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Solution

The fourth proportional to 7,242.78, 10,863.27 and 2,312.94 is: 3,469.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,242.78 : 10,863.27 = 2,312.94 : x
  2. Step 2: Convert to fraction form
    7,242.78/10,863.27 = 2,312.94/x
  3. Step 3: Cross multiply
    7,242.78x = 10,863.27 × 2,312.94
  4. Step 4: Simplify right side
    7,242.78x = 25,126,091.71
  5. Step 5: Solve for x
    x = 25,126,091.71/7,242.78
  6. Step 6: Final answer
    x = 3,469.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.