Home / 3,581.37-4,942.22-1,987.93

Finding the Fourth Proportional to 3,581.37, 4,942.22 and 1,987.93

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Solution

The fourth proportional to 3,581.37, 4,942.22 and 1,987.93 is: 2,743.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,581.37 : 4,942.22 = 1,987.93 : x
  2. Step 2: Convert to fraction form
    3,581.37/4,942.22 = 1,987.93/x
  3. Step 3: Cross multiply
    3,581.37x = 4,942.22 × 1,987.93
  4. Step 4: Simplify right side
    3,581.37x = 9,824,765.11
  5. Step 5: Solve for x
    x = 9,824,765.11/3,581.37
  6. Step 6: Final answer
    x = 2,743.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.