Home / 5,205.45-7,806.14-1,694.61

Finding the Fourth Proportional to 5,205.45, 7,806.14 and 1,694.61

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Solution

The fourth proportional to 5,205.45, 7,806.14 and 1,694.61 is: 2,541.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,205.45 : 7,806.14 = 1,694.61 : x
  2. Step 2: Convert to fraction form
    5,205.45/7,806.14 = 1,694.61/x
  3. Step 3: Cross multiply
    5,205.45x = 7,806.14 × 1,694.61
  4. Step 4: Simplify right side
    5,205.45x = 13,228,347.63
  5. Step 5: Solve for x
    x = 13,228,347.63/5,205.45
  6. Step 6: Final answer
    x = 2,541.25

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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.