Home / 3,134.80-4,702.08-1,186.96

Finding the Fourth Proportional to 3,134.80, 4,702.08 and 1,186.96

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Solution

The fourth proportional to 3,134.80, 4,702.08 and 1,186.96 is: 1,780.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,134.80 : 4,702.08 = 1,186.96 : x
  2. Step 2: Convert to fraction form
    3,134.80/4,702.08 = 1,186.96/x
  3. Step 3: Cross multiply
    3,134.80x = 4,702.08 × 1,186.96
  4. Step 4: Simplify right side
    3,134.80x = 5,581,180.88
  5. Step 5: Solve for x
    x = 5,581,180.88/3,134.80
  6. Step 6: Final answer
    x = 1,780.39

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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.