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Finding the Fourth Proportional to 6,385.88, 8,809.62 and 4,614.68

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Solution

The fourth proportional to 6,385.88, 8,809.62 and 4,614.68 is: 6,366.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,385.88 : 8,809.62 = 4,614.68 : x
  2. Step 2: Convert to fraction form
    6,385.88/8,809.62 = 4,614.68/x
  3. Step 3: Cross multiply
    6,385.88x = 8,809.62 × 4,614.68
  4. Step 4: Simplify right side
    6,385.88x = 40,653,577.22
  5. Step 5: Solve for x
    x = 40,653,577.22/6,385.88
  6. Step 6: Final answer
    x = 6,366.17

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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.