Home / 3,137.40-4,706.10-2,979.45

Finding the Fourth Proportional to 3,137.40, 4,706.10 and 2,979.45

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Solution

The fourth proportional to 3,137.40, 4,706.10 and 2,979.45 is: 4,469.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.40 : 4,706.10 = 2,979.45 : x
  2. Step 2: Convert to fraction form
    3,137.40/4,706.10 = 2,979.45/x
  3. Step 3: Cross multiply
    3,137.40x = 4,706.10 × 2,979.45
  4. Step 4: Simplify right side
    3,137.40x = 14,021,589.65
  5. Step 5: Solve for x
    x = 14,021,589.65/3,137.40
  6. Step 6: Final answer
    x = 4,469.18

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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.