Home / 2,726.10-4,087.80-851.70

Finding the Fourth Proportional to 2,726.10, 4,087.80 and 851.70

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Solution

The fourth proportional to 2,726.10, 4,087.80 and 851.70 is: 1,277.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,726.10 : 4,087.80 = 851.70 : x
  2. Step 2: Convert to fraction form
    2,726.10/4,087.80 = 851.70/x
  3. Step 3: Cross multiply
    2,726.10x = 4,087.80 × 851.70
  4. Step 4: Simplify right side
    2,726.10x = 3,481,579.26
  5. Step 5: Solve for x
    x = 3,481,579.26/2,726.10
  6. Step 6: Final answer
    x = 1,277.13

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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.