Home / 1,232.10-1,857.20-1,199.70

Finding the Fourth Proportional to 1,232.10, 1,857.20 and 1,199.70

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Solution

The fourth proportional to 1,232.10, 1,857.20 and 1,199.70 is: 1,808.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,232.10 : 1,857.20 = 1,199.70 : x
  2. Step 2: Convert to fraction form
    1,232.10/1,857.20 = 1,199.70/x
  3. Step 3: Cross multiply
    1,232.10x = 1,857.20 × 1,199.70
  4. Step 4: Simplify right side
    1,232.10x = 2,228,076.84
  5. Step 5: Solve for x
    x = 2,228,076.84/1,232.10
  6. Step 6: Final answer
    x = 1,808.36

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.