Home / 7,851.18-11,776.76-2,007.79

Finding the Fourth Proportional to 7,851.18, 11,776.76 and 2,007.79

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Solution

The fourth proportional to 7,851.18, 11,776.76 and 2,007.79 is: 3,011.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,851.18 : 11,776.76 = 2,007.79 : x
  2. Step 2: Convert to fraction form
    7,851.18/11,776.76 = 2,007.79/x
  3. Step 3: Cross multiply
    7,851.18x = 11,776.76 × 2,007.79
  4. Step 4: Simplify right side
    7,851.18x = 23,645,260.96
  5. Step 5: Solve for x
    x = 23,645,260.96/7,851.18
  6. Step 6: Final answer
    x = 3,011.68

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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.