Home / 3,126.60-4,690.38-1,180.44

Finding the Fourth Proportional to 3,126.60, 4,690.38 and 1,180.44

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Solution

The fourth proportional to 3,126.60, 4,690.38 and 1,180.44 is: 1,770.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.60 : 4,690.38 = 1,180.44 : x
  2. Step 2: Convert to fraction form
    3,126.60/4,690.38 = 1,180.44/x
  3. Step 3: Cross multiply
    3,126.60x = 4,690.38 × 1,180.44
  4. Step 4: Simplify right side
    3,126.60x = 5,536,712.17
  5. Step 5: Solve for x
    x = 5,536,712.17/3,126.60
  6. Step 6: Final answer
    x = 1,770.84

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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.