Home / 7,821.18-11,731.83-2,274.90

Finding the Fourth Proportional to 7,821.18, 11,731.83 and 2,274.90

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Solution

The fourth proportional to 7,821.18, 11,731.83 and 2,274.90 is: 3,412.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,821.18 : 11,731.83 = 2,274.90 : x
  2. Step 2: Convert to fraction form
    7,821.18/11,731.83 = 2,274.90/x
  3. Step 3: Cross multiply
    7,821.18x = 11,731.83 × 2,274.90
  4. Step 4: Simplify right side
    7,821.18x = 26,688,740.07
  5. Step 5: Solve for x
    x = 26,688,740.07/7,821.18
  6. Step 6: Final answer
    x = 3,412.37

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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.