Home / 1,669.21-2,503.88-499.23

Finding the Fourth Proportional to 1,669.21, 2,503.88 and 499.23

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Solution

The fourth proportional to 1,669.21, 2,503.88 and 499.23 is: 748.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,669.21 : 2,503.88 = 499.23 : x
  2. Step 2: Convert to fraction form
    1,669.21/2,503.88 = 499.23/x
  3. Step 3: Cross multiply
    1,669.21x = 2,503.88 × 499.23
  4. Step 4: Simplify right side
    1,669.21x = 1,250,004.50
  5. Step 5: Solve for x
    x = 1,250,004.50/1,669.21
  6. Step 6: Final answer
    x = 748.86

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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.