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Finding the Fourth Proportional to 6,614.68, 9,917.16 and 3,154.36

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Solution

The fourth proportional to 6,614.68, 9,917.16 and 3,154.36 is: 4,729.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,614.68 : 9,917.16 = 3,154.36 : x
  2. Step 2: Convert to fraction form
    6,614.68/9,917.16 = 3,154.36/x
  3. Step 3: Cross multiply
    6,614.68x = 9,917.16 × 3,154.36
  4. Step 4: Simplify right side
    6,614.68x = 31,282,292.82
  5. Step 5: Solve for x
    x = 31,282,292.82/6,614.68
  6. Step 6: Final answer
    x = 4,729.22

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1.5x scale

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.