Home / 1,669.20-2,504.16-694.80

Finding the Fourth Proportional to 1,669.20, 2,504.16 and 694.80

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Solution

The fourth proportional to 1,669.20, 2,504.16 and 694.80 is: 1,042.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,669.20 : 2,504.16 = 694.80 : x
  2. Step 2: Convert to fraction form
    1,669.20/2,504.16 = 694.80/x
  3. Step 3: Cross multiply
    1,669.20x = 2,504.16 × 694.80
  4. Step 4: Simplify right side
    1,669.20x = 1,739,890.37
  5. Step 5: Solve for x
    x = 1,739,890.37/1,669.20
  6. Step 6: Final answer
    x = 1,042.35

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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.