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Finding the Fourth Proportional to 6,278.60, 8,664.64 and 4,044.80

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Solution

The fourth proportional to 6,278.60, 8,664.64 and 4,044.80 is: 5,581.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,278.60 : 8,664.64 = 4,044.80 : x
  2. Step 2: Convert to fraction form
    6,278.60/8,664.64 = 4,044.80/x
  3. Step 3: Cross multiply
    6,278.60x = 8,664.64 × 4,044.80
  4. Step 4: Simplify right side
    6,278.60x = 35,046,735.87
  5. Step 5: Solve for x
    x = 35,046,735.87/6,278.60
  6. Step 6: Final answer
    x = 5,581.93

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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.