Home / 4,469.20-6,706.20-1,872.40

Finding the Fourth Proportional to 4,469.20, 6,706.20 and 1,872.40

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Solution

The fourth proportional to 4,469.20, 6,706.20 and 1,872.40 is: 2,809.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,469.20 : 6,706.20 = 1,872.40 : x
  2. Step 2: Convert to fraction form
    4,469.20/6,706.20 = 1,872.40/x
  3. Step 3: Cross multiply
    4,469.20x = 6,706.20 × 1,872.40
  4. Step 4: Simplify right side
    4,469.20x = 12,556,688.88
  5. Step 5: Solve for x
    x = 12,556,688.88/4,469.20
  6. Step 6: Final answer
    x = 2,809.61

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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.