Home / 1,208.02-1,666.94-759.79

Finding the Fourth Proportional to 1,208.02, 1,666.94 and 759.79

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Solution

The fourth proportional to 1,208.02, 1,666.94 and 759.79 is: 1,048.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208.02 : 1,666.94 = 759.79 : x
  2. Step 2: Convert to fraction form
    1,208.02/1,666.94 = 759.79/x
  3. Step 3: Cross multiply
    1,208.02x = 1,666.94 × 759.79
  4. Step 4: Simplify right side
    1,208.02x = 1,266,524.34
  5. Step 5: Solve for x
    x = 1,266,524.34/1,208.02
  6. Step 6: Final answer
    x = 1,048.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.