Home / 3,274.91-4,520.85-2,156.44

Finding the Fourth Proportional to 3,274.91, 4,520.85 and 2,156.44

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Solution

The fourth proportional to 3,274.91, 4,520.85 and 2,156.44 is: 2,976.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,274.91 : 4,520.85 = 2,156.44 : x
  2. Step 2: Convert to fraction form
    3,274.91/4,520.85 = 2,156.44/x
  3. Step 3: Cross multiply
    3,274.91x = 4,520.85 × 2,156.44
  4. Step 4: Simplify right side
    3,274.91x = 9,748,941.77
  5. Step 5: Solve for x
    x = 9,748,941.77/3,274.91
  6. Step 6: Final answer
    x = 2,976.86

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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.