Home / 1,400.75-2,101.50-1,247.73

Finding the Fourth Proportional to 1,400.75, 2,101.50 and 1,247.73

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Solution

The fourth proportional to 1,400.75, 2,101.50 and 1,247.73 is: 1,871.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400.75 : 2,101.50 = 1,247.73 : x
  2. Step 2: Convert to fraction form
    1,400.75/2,101.50 = 1,247.73/x
  3. Step 3: Cross multiply
    1,400.75x = 2,101.50 × 1,247.73
  4. Step 4: Simplify right side
    1,400.75x = 2,622,104.60
  5. Step 5: Solve for x
    x = 2,622,104.60/1,400.75
  6. Step 6: Final answer
    x = 1,871.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.