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Finding the Fourth Proportional to 4,406.05, 6,609.06 and 2,928.15

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Solution

The fourth proportional to 4,406.05, 6,609.06 and 2,928.15 is: 4,392.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,406.05 : 6,609.06 = 2,928.15 : x
  2. Step 2: Convert to fraction form
    4,406.05/6,609.06 = 2,928.15/x
  3. Step 3: Cross multiply
    4,406.05x = 6,609.06 × 2,928.15
  4. Step 4: Simplify right side
    4,406.05x = 19,352,319.04
  5. Step 5: Solve for x
    x = 19,352,319.04/4,406.05
  6. Step 6: Final answer
    x = 4,392.22

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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.