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Finding the Fourth Proportional to 6,677.92, 10,014.72 and 3,390.40

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Solution

The fourth proportional to 6,677.92, 10,014.72 and 3,390.40 is: 5,084.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,677.92 : 10,014.72 = 3,390.40 : x
  2. Step 2: Convert to fraction form
    6,677.92/10,014.72 = 3,390.40/x
  3. Step 3: Cross multiply
    6,677.92x = 10,014.72 × 3,390.40
  4. Step 4: Simplify right side
    6,677.92x = 33,953,906.69
  5. Step 5: Solve for x
    x = 33,953,906.69/6,677.92
  6. Step 6: Final answer
    x = 5,084.50

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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.