Home / 5,206.37-7,809.35-2,087.78

Finding the Fourth Proportional to 5,206.37, 7,809.35 and 2,087.78

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Solution

The fourth proportional to 5,206.37, 7,809.35 and 2,087.78 is: 3,131.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,206.37 : 7,809.35 = 2,087.78 : x
  2. Step 2: Convert to fraction form
    5,206.37/7,809.35 = 2,087.78/x
  3. Step 3: Cross multiply
    5,206.37x = 7,809.35 × 2,087.78
  4. Step 4: Simplify right side
    5,206.37x = 16,304,155.26
  5. Step 5: Solve for x
    x = 16,304,155.26/5,206.37
  6. Step 6: Final answer
    x = 3,131.58

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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.