Home / 3,421.44-4,720.20-2,092.86

Finding the Fourth Proportional to 3,421.44, 4,720.20 and 2,092.86

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Solution

The fourth proportional to 3,421.44, 4,720.20 and 2,092.86 is: 2,887.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.44 : 4,720.20 = 2,092.86 : x
  2. Step 2: Convert to fraction form
    3,421.44/4,720.20 = 2,092.86/x
  3. Step 3: Cross multiply
    3,421.44x = 4,720.20 × 2,092.86
  4. Step 4: Simplify right side
    3,421.44x = 9,878,717.77
  5. Step 5: Solve for x
    x = 9,878,717.77/3,421.44
  6. Step 6: Final answer
    x = 2,887.30

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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.