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Finding the Fourth Proportional to 6,755.84, 10,130.36 and 3,945.64

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Solution

The fourth proportional to 6,755.84, 10,130.36 and 3,945.64 is: 5,916.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,755.84 : 10,130.36 = 3,945.64 : x
  2. Step 2: Convert to fraction form
    6,755.84/10,130.36 = 3,945.64/x
  3. Step 3: Cross multiply
    6,755.84x = 10,130.36 × 3,945.64
  4. Step 4: Simplify right side
    6,755.84x = 39,970,753.63
  5. Step 5: Solve for x
    x = 39,970,753.63/6,755.84
  6. Step 6: Final answer
    x = 5,916.47

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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.