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Finding the Fourth Proportional to 4,405.84, 6,609.18 and 1,285.88

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Solution

The fourth proportional to 4,405.84, 6,609.18 and 1,285.88 is: 1,928.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,405.84 : 6,609.18 = 1,285.88 : x
  2. Step 2: Convert to fraction form
    4,405.84/6,609.18 = 1,285.88/x
  3. Step 3: Cross multiply
    4,405.84x = 6,609.18 × 1,285.88
  4. Step 4: Simplify right side
    4,405.84x = 8,498,612.38
  5. Step 5: Solve for x
    x = 8,498,612.38/4,405.84
  6. Step 6: Final answer
    x = 1,928.94

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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.