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Finding the Fourth Proportional to 3,156.44, 4,354.14 and 2,934.04

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Solution

The fourth proportional to 3,156.44, 4,354.14 and 2,934.04 is: 4,047.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156.44 : 4,354.14 = 2,934.04 : x
  2. Step 2: Convert to fraction form
    3,156.44/4,354.14 = 2,934.04/x
  3. Step 3: Cross multiply
    3,156.44x = 4,354.14 × 2,934.04
  4. Step 4: Simplify right side
    3,156.44x = 12,775,220.93
  5. Step 5: Solve for x
    x = 12,775,220.93/3,156.44
  6. Step 6: Final answer
    x = 4,047.35

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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.