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Finding the Fourth Proportional to 6,718.56, 9,271.62 and 3,734.88

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Solution

The fourth proportional to 6,718.56, 9,271.62 and 3,734.88 is: 5,154.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,718.56 : 9,271.62 = 3,734.88 : x
  2. Step 2: Convert to fraction form
    6,718.56/9,271.62 = 3,734.88/x
  3. Step 3: Cross multiply
    6,718.56x = 9,271.62 × 3,734.88
  4. Step 4: Simplify right side
    6,718.56x = 34,628,388.11
  5. Step 5: Solve for x
    x = 34,628,388.11/6,718.56
  6. Step 6: Final answer
    x = 5,154.14

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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.