Home / 1,947.70-2,689.66-1,250.30

Finding the Fourth Proportional to 1,947.70, 2,689.66 and 1,250.30

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Solution

The fourth proportional to 1,947.70, 2,689.66 and 1,250.30 is: 1,726.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947.70 : 2,689.66 = 1,250.30 : x
  2. Step 2: Convert to fraction form
    1,947.70/2,689.66 = 1,250.30/x
  3. Step 3: Cross multiply
    1,947.70x = 2,689.66 × 1,250.30
  4. Step 4: Simplify right side
    1,947.70x = 3,362,881.90
  5. Step 5: Solve for x
    x = 3,362,881.90/1,947.70
  6. Step 6: Final answer
    x = 1,726.59

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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.