Home / 1,372.28-2,047.10-1,269

Finding the Fourth Proportional to 1,372.28, 2,047.10 and 1,269

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Solution

The fourth proportional to 1,372.28, 2,047.10 and 1,269 is: 1,893.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,372.28 : 2,047.10 = 1,269 : x
  2. Step 2: Convert to fraction form
    1,372.28/2,047.10 = 1,269/x
  3. Step 3: Cross multiply
    1,372.28x = 2,047.10 × 1,269
  4. Step 4: Simplify right side
    1,372.28x = 2,597,763.56
  5. Step 5: Solve for x
    x = 2,597,763.56/1,372.28
  6. Step 6: Final answer
    x = 1,893.03

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.