Home / 1,207.31-1,811.21-504.50

Finding the Fourth Proportional to 1,207.31, 1,811.21 and 504.50

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Solution

The fourth proportional to 1,207.31, 1,811.21 and 504.50 is: 756.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207.31 : 1,811.21 = 504.50 : x
  2. Step 2: Convert to fraction form
    1,207.31/1,811.21 = 504.50/x
  3. Step 3: Cross multiply
    1,207.31x = 1,811.21 × 504.50
  4. Step 4: Simplify right side
    1,207.31x = 913,743.87
  5. Step 5: Solve for x
    x = 913,743.87/1,207.31
  6. Step 6: Final answer
    x = 756.85

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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.