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Finding the Fourth Proportional to 6,618.51, 9,134.27 and 3,786.14

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Solution

The fourth proportional to 6,618.51, 9,134.27 and 3,786.14 is: 5,225.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,618.51 : 9,134.27 = 3,786.14 : x
  2. Step 2: Convert to fraction form
    6,618.51/9,134.27 = 3,786.14/x
  3. Step 3: Cross multiply
    6,618.51x = 9,134.27 × 3,786.14
  4. Step 4: Simplify right side
    6,618.51x = 34,583,625.02
  5. Step 5: Solve for x
    x = 34,583,625.02/6,618.51
  6. Step 6: Final answer
    x = 5,225.29

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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.