Home / 3,048.10-4,206.15-1,721.80

Finding the Fourth Proportional to 3,048.10, 4,206.15 and 1,721.80

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Solution

The fourth proportional to 3,048.10, 4,206.15 and 1,721.80 is: 2,375.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,048.10 : 4,206.15 = 1,721.80 : x
  2. Step 2: Convert to fraction form
    3,048.10/4,206.15 = 1,721.80/x
  3. Step 3: Cross multiply
    3,048.10x = 4,206.15 × 1,721.80
  4. Step 4: Simplify right side
    3,048.10x = 7,242,149.07
  5. Step 5: Solve for x
    x = 7,242,149.07/3,048.10
  6. Step 6: Final answer
    x = 2,375.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.