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Finding the Fourth Proportional to 6,410.56, 9,616.85 and 2,712.81

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Solution

The fourth proportional to 6,410.56, 9,616.85 and 2,712.81 is: 4,069.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,410.56 : 9,616.85 = 2,712.81 : x
  2. Step 2: Convert to fraction form
    6,410.56/9,616.85 = 2,712.81/x
  3. Step 3: Cross multiply
    6,410.56x = 9,616.85 × 2,712.81
  4. Step 4: Simplify right side
    6,410.56x = 26,088,686.85
  5. Step 5: Solve for x
    x = 26,088,686.85/6,410.56
  6. Step 6: Final answer
    x = 4,069.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.