Home / 1,245.98-1,716.80-1,132.08

Finding the Fourth Proportional to 1,245.98, 1,716.80 and 1,132.08

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Solution

The fourth proportional to 1,245.98, 1,716.80 and 1,132.08 is: 1,559.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245.98 : 1,716.80 = 1,132.08 : x
  2. Step 2: Convert to fraction form
    1,245.98/1,716.80 = 1,132.08/x
  3. Step 3: Cross multiply
    1,245.98x = 1,716.80 × 1,132.08
  4. Step 4: Simplify right side
    1,245.98x = 1,943,542.85
  5. Step 5: Solve for x
    x = 1,943,542.85/1,245.98
  6. Step 6: Final answer
    x = 1,559.85

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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.