Home / 5,205.40-7,806.24-2,606.56

Finding the Fourth Proportional to 5,205.40, 7,806.24 and 2,606.56

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Solution

The fourth proportional to 5,205.40, 7,806.24 and 2,606.56 is: 3,908.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,205.40 : 7,806.24 = 2,606.56 : x
  2. Step 2: Convert to fraction form
    5,205.40/7,806.24 = 2,606.56/x
  3. Step 3: Cross multiply
    5,205.40x = 7,806.24 × 2,606.56
  4. Step 4: Simplify right side
    5,205.40x = 20,347,432.93
  5. Step 5: Solve for x
    x = 20,347,432.93/5,205.40
  6. Step 6: Final answer
    x = 3,908.91

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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.