Home / 7,116.78-10,676.73-2,186.79

Finding the Fourth Proportional to 7,116.78, 10,676.73 and 2,186.79

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Solution

The fourth proportional to 7,116.78, 10,676.73 and 2,186.79 is: 3,280.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,116.78 : 10,676.73 = 2,186.79 : x
  2. Step 2: Convert to fraction form
    7,116.78/10,676.73 = 2,186.79/x
  3. Step 3: Cross multiply
    7,116.78x = 10,676.73 × 2,186.79
  4. Step 4: Simplify right side
    7,116.78x = 23,347,766.40
  5. Step 5: Solve for x
    x = 23,347,766.40/7,116.78
  6. Step 6: Final answer
    x = 3,280.66

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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.