Home / 3,048.86-4,207.67-1,722.81

Finding the Fourth Proportional to 3,048.86, 4,207.67 and 1,722.81

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Solution

The fourth proportional to 3,048.86, 4,207.67 and 1,722.81 is: 2,377.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,048.86 : 4,207.67 = 1,722.81 : x
  2. Step 2: Convert to fraction form
    3,048.86/4,207.67 = 1,722.81/x
  3. Step 3: Cross multiply
    3,048.86x = 4,207.67 × 1,722.81
  4. Step 4: Simplify right side
    3,048.86x = 7,249,039.27
  5. Step 5: Solve for x
    x = 7,249,039.27/3,048.86
  6. Step 6: Final answer
    x = 2,377.63

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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.