Home / 5,208.20-7,807.20-2,087.36

Finding the Fourth Proportional to 5,208.20, 7,807.20 and 2,087.36

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Solution

The fourth proportional to 5,208.20, 7,807.20 and 2,087.36 is: 3,129.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,208.20 : 7,807.20 = 2,087.36 : x
  2. Step 2: Convert to fraction form
    5,208.20/7,807.20 = 2,087.36/x
  3. Step 3: Cross multiply
    5,208.20x = 7,807.20 × 2,087.36
  4. Step 4: Simplify right side
    5,208.20x = 16,296,436.99
  5. Step 5: Solve for x
    x = 16,296,436.99/5,208.20
  6. Step 6: Final answer
    x = 3,129.00

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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.