Home / 3,747.20-5,619.73-1,114.60

Finding the Fourth Proportional to 3,747.20, 5,619.73 and 1,114.60

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Solution

The fourth proportional to 3,747.20, 5,619.73 and 1,114.60 is: 1,671.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,747.20 : 5,619.73 = 1,114.60 : x
  2. Step 2: Convert to fraction form
    3,747.20/5,619.73 = 1,114.60/x
  3. Step 3: Cross multiply
    3,747.20x = 5,619.73 × 1,114.60
  4. Step 4: Simplify right side
    3,747.20x = 6,263,717.39
  5. Step 5: Solve for x
    x = 6,263,717.39/3,747.20
  6. Step 6: Final answer
    x = 1,671.57

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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.