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Finding the Fourth Proportional to 2,193.79, 3,028 and 1,250.12

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Solution

The fourth proportional to 2,193.79, 3,028 and 1,250.12 is: 1,725.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,193.79 : 3,028 = 1,250.12 : x
  2. Step 2: Convert to fraction form
    2,193.79/3,028 = 1,250.12/x
  3. Step 3: Cross multiply
    2,193.79x = 3,028 × 1,250.12
  4. Step 4: Simplify right side
    2,193.79x = 3,785,363.36
  5. Step 5: Solve for x
    x = 3,785,363.36/2,193.79
  6. Step 6: Final answer
    x = 1,725.49

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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.