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Finding the Fourth Proportional to 2,934.12, 4,375.32 and 2,907.80

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Solution

The fourth proportional to 2,934.12, 4,375.32 and 2,907.80 is: 4,336.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,934.12 : 4,375.32 = 2,907.80 : x
  2. Step 2: Convert to fraction form
    2,934.12/4,375.32 = 2,907.80/x
  3. Step 3: Cross multiply
    2,934.12x = 4,375.32 × 2,907.80
  4. Step 4: Simplify right side
    2,934.12x = 12,722,555.50
  5. Step 5: Solve for x
    x = 12,722,555.50/2,934.12
  6. Step 6: Final answer
    x = 4,336.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.