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Finding the Fourth Proportional to 4,843.40, 7,259.70 and 2,764.40

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Solution

The fourth proportional to 4,843.40, 7,259.70 and 2,764.40 is: 4,143.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,843.40 : 7,259.70 = 2,764.40 : x
  2. Step 2: Convert to fraction form
    4,843.40/7,259.70 = 2,764.40/x
  3. Step 3: Cross multiply
    4,843.40x = 7,259.70 × 2,764.40
  4. Step 4: Simplify right side
    4,843.40x = 20,068,714.68
  5. Step 5: Solve for x
    x = 20,068,714.68/4,843.40
  6. Step 6: Final answer
    x = 4,143.52

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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.