Home / 3,221.44-4,830.66-1,887.63

Finding the Fourth Proportional to 3,221.44, 4,830.66 and 1,887.63

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Solution

The fourth proportional to 3,221.44, 4,830.66 and 1,887.63 is: 2,830.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221.44 : 4,830.66 = 1,887.63 : x
  2. Step 2: Convert to fraction form
    3,221.44/4,830.66 = 1,887.63/x
  3. Step 3: Cross multiply
    3,221.44x = 4,830.66 × 1,887.63
  4. Step 4: Simplify right side
    3,221.44x = 9,118,489.30
  5. Step 5: Solve for x
    x = 9,118,489.30/3,221.44
  6. Step 6: Final answer
    x = 2,830.57

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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.