Home / 1,764.20-2,431.23-1,292.24

Finding the Fourth Proportional to 1,764.20, 2,431.23 and 1,292.24

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Solution

The fourth proportional to 1,764.20, 2,431.23 and 1,292.24 is: 1,780.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,764.20 : 2,431.23 = 1,292.24 : x
  2. Step 2: Convert to fraction form
    1,764.20/2,431.23 = 1,292.24/x
  3. Step 3: Cross multiply
    1,764.20x = 2,431.23 × 1,292.24
  4. Step 4: Simplify right side
    1,764.20x = 3,141,720.50
  5. Step 5: Solve for x
    x = 3,141,720.50/1,764.20
  6. Step 6: Final answer
    x = 1,780.82

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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.