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Finding the Fourth Proportional to 7,243.78, 10,864.77 and 2,313.94

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Solution

The fourth proportional to 7,243.78, 10,864.77 and 2,313.94 is: 3,470.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,243.78 : 10,864.77 = 2,313.94 : x
  2. Step 2: Convert to fraction form
    7,243.78/10,864.77 = 2,313.94/x
  3. Step 3: Cross multiply
    7,243.78x = 10,864.77 × 2,313.94
  4. Step 4: Simplify right side
    7,243.78x = 25,140,425.89
  5. Step 5: Solve for x
    x = 25,140,425.89/7,243.78
  6. Step 6: Final answer
    x = 3,470.62

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1.5x scale

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.