Home / 1,400.88-1,928.97-1,269.06

Finding the Fourth Proportional to 1,400.88, 1,928.97 and 1,269.06

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Solution

The fourth proportional to 1,400.88, 1,928.97 and 1,269.06 is: 1,747.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400.88 : 1,928.97 = 1,269.06 : x
  2. Step 2: Convert to fraction form
    1,400.88/1,928.97 = 1,269.06/x
  3. Step 3: Cross multiply
    1,400.88x = 1,928.97 × 1,269.06
  4. Step 4: Simplify right side
    1,400.88x = 2,447,978.67
  5. Step 5: Solve for x
    x = 2,447,978.67/1,400.88
  6. Step 6: Final answer
    x = 1,747.46

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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.