Home / 7,120.62-10,676.82-3,417.81

Finding the Fourth Proportional to 7,120.62, 10,676.82 and 3,417.81

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Solution

The fourth proportional to 7,120.62, 10,676.82 and 3,417.81 is: 5,124.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,120.62 : 10,676.82 = 3,417.81 : x
  2. Step 2: Convert to fraction form
    7,120.62/10,676.82 = 3,417.81/x
  3. Step 3: Cross multiply
    7,120.62x = 10,676.82 × 3,417.81
  4. Step 4: Simplify right side
    7,120.62x = 36,491,342.16
  5. Step 5: Solve for x
    x = 36,491,342.16/7,120.62
  6. Step 6: Final answer
    x = 5,124.74

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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.