Home / 3,135.22-4,702.56-1,187.44

Finding the Fourth Proportional to 3,135.22, 4,702.56 and 1,187.44

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Solution

The fourth proportional to 3,135.22, 4,702.56 and 1,187.44 is: 1,781.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.22 : 4,702.56 = 1,187.44 : x
  2. Step 2: Convert to fraction form
    3,135.22/4,702.56 = 1,187.44/x
  3. Step 3: Cross multiply
    3,135.22x = 4,702.56 × 1,187.44
  4. Step 4: Simplify right side
    3,135.22x = 5,584,007.85
  5. Step 5: Solve for x
    x = 5,584,007.85/3,135.22
  6. Step 6: Final answer
    x = 1,781.06

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1.5x scale

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.