Home / 1,747.06-2,620.49-514.31

Finding the Fourth Proportional to 1,747.06, 2,620.49 and 514.31

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Solution

The fourth proportional to 1,747.06, 2,620.49 and 514.31 is: 771.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,747.06 : 2,620.49 = 514.31 : x
  2. Step 2: Convert to fraction form
    1,747.06/2,620.49 = 514.31/x
  3. Step 3: Cross multiply
    1,747.06x = 2,620.49 × 514.31
  4. Step 4: Simplify right side
    1,747.06x = 1,347,728.54
  5. Step 5: Solve for x
    x = 1,347,728.54/1,747.06
  6. Step 6: Final answer
    x = 771.43

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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.