Home / 3,620.37-5,430.44-1,155.34

Finding the Fourth Proportional to 3,620.37, 5,430.44 and 1,155.34

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Solution

The fourth proportional to 3,620.37, 5,430.44 and 1,155.34 is: 1,732.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,620.37 : 5,430.44 = 1,155.34 : x
  2. Step 2: Convert to fraction form
    3,620.37/5,430.44 = 1,155.34/x
  3. Step 3: Cross multiply
    3,620.37x = 5,430.44 × 1,155.34
  4. Step 4: Simplify right side
    3,620.37x = 6,273,993.86
  5. Step 5: Solve for x
    x = 6,273,993.86/3,620.37
  6. Step 6: Final answer
    x = 1,732.97

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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.