Home / 3,747.44-5,621.32-1,407.20

Finding the Fourth Proportional to 3,747.44, 5,621.32 and 1,407.20

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Solution

The fourth proportional to 3,747.44, 5,621.32 and 1,407.20 is: 2,110.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,747.44 : 5,621.32 = 1,407.20 : x
  2. Step 2: Convert to fraction form
    3,747.44/5,621.32 = 1,407.20/x
  3. Step 3: Cross multiply
    3,747.44x = 5,621.32 × 1,407.20
  4. Step 4: Simplify right side
    3,747.44x = 7,910,321.50
  5. Step 5: Solve for x
    x = 7,910,321.50/3,747.44
  6. Step 6: Final answer
    x = 2,110.86

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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.