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Finding the Fourth Proportional to 6,127.90, 8,464.22 and 5,329.64

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Solution

The fourth proportional to 6,127.90, 8,464.22 and 5,329.64 is: 7,361.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,127.90 : 8,464.22 = 5,329.64 : x
  2. Step 2: Convert to fraction form
    6,127.90/8,464.22 = 5,329.64/x
  3. Step 3: Cross multiply
    6,127.90x = 8,464.22 × 5,329.64
  4. Step 4: Simplify right side
    6,127.90x = 45,111,245.48
  5. Step 5: Solve for x
    x = 45,111,245.48/6,127.90
  6. Step 6: Final answer
    x = 7,361.62

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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.