Home / 1,876.31-2,586.46-1,245.73

Finding the Fourth Proportional to 1,876.31, 2,586.46 and 1,245.73

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Solution

The fourth proportional to 1,876.31, 2,586.46 and 1,245.73 is: 1,717.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,876.31 : 2,586.46 = 1,245.73 : x
  2. Step 2: Convert to fraction form
    1,876.31/2,586.46 = 1,245.73/x
  3. Step 3: Cross multiply
    1,876.31x = 2,586.46 × 1,245.73
  4. Step 4: Simplify right side
    1,876.31x = 3,222,017.88
  5. Step 5: Solve for x
    x = 3,222,017.88/1,876.31
  6. Step 6: Final answer
    x = 1,717.21

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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.