Home / 3,048.70-4,207.20-1,722.68

Finding the Fourth Proportional to 3,048.70, 4,207.20 and 1,722.68

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Solution

The fourth proportional to 3,048.70, 4,207.20 and 1,722.68 is: 2,377.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,048.70 : 4,207.20 = 1,722.68 : x
  2. Step 2: Convert to fraction form
    3,048.70/4,207.20 = 1,722.68/x
  3. Step 3: Cross multiply
    3,048.70x = 4,207.20 × 1,722.68
  4. Step 4: Simplify right side
    3,048.70x = 7,247,659.30
  5. Step 5: Solve for x
    x = 7,247,659.30/3,048.70
  6. Step 6: Final answer
    x = 2,377.30

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1.5x scale

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.