Home / 1,983.60-2,734.68-1,672.56

Finding the Fourth Proportional to 1,983.60, 2,734.68 and 1,672.56

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Solution

The fourth proportional to 1,983.60, 2,734.68 and 1,672.56 is: 2,305.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,983.60 : 2,734.68 = 1,672.56 : x
  2. Step 2: Convert to fraction form
    1,983.60/2,734.68 = 1,672.56/x
  3. Step 3: Cross multiply
    1,983.60x = 2,734.68 × 1,672.56
  4. Step 4: Simplify right side
    1,983.60x = 4,573,916.38
  5. Step 5: Solve for x
    x = 4,573,916.38/1,983.60
  6. Step 6: Final answer
    x = 2,305.87

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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.