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Finding the Fourth Proportional to 6,451.08, 8,901.37 and 3,618

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Solution

The fourth proportional to 6,451.08, 8,901.37 and 3,618 is: 4,992.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,451.08 : 8,901.37 = 3,618 : x
  2. Step 2: Convert to fraction form
    6,451.08/8,901.37 = 3,618/x
  3. Step 3: Cross multiply
    6,451.08x = 8,901.37 × 3,618
  4. Step 4: Simplify right side
    6,451.08x = 32,205,156.66
  5. Step 5: Solve for x
    x = 32,205,156.66/6,451.08
  6. Step 6: Final answer
    x = 4,992.21

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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.