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Finding the Fourth Proportional to 6,359.96, 8,777.09 and 3,707.21

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Solution

The fourth proportional to 6,359.96, 8,777.09 and 3,707.21 is: 5,116.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,359.96 : 8,777.09 = 3,707.21 : x
  2. Step 2: Convert to fraction form
    6,359.96/8,777.09 = 3,707.21/x
  3. Step 3: Cross multiply
    6,359.96x = 8,777.09 × 3,707.21
  4. Step 4: Simplify right side
    6,359.96x = 32,538,515.82
  5. Step 5: Solve for x
    x = 32,538,515.82/6,359.96
  6. Step 6: Final answer
    x = 5,116.15

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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.