Home / 7,874.05-11,806.74-3,125.41

Finding the Fourth Proportional to 7,874.05, 11,806.74 and 3,125.41

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Solution

The fourth proportional to 7,874.05, 11,806.74 and 3,125.41 is: 4,686.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,874.05 : 11,806.74 = 3,125.41 : x
  2. Step 2: Convert to fraction form
    7,874.05/11,806.74 = 3,125.41/x
  3. Step 3: Cross multiply
    7,874.05x = 11,806.74 × 3,125.41
  4. Step 4: Simplify right side
    7,874.05x = 36,900,903.26
  5. Step 5: Solve for x
    x = 36,900,903.26/7,874.05
  6. Step 6: Final answer
    x = 4,686.39

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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.