Home / 5,305.04-7,321.72-3,180.68

Finding the Fourth Proportional to 5,305.04, 7,321.72 and 3,180.68

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Solution

The fourth proportional to 5,305.04, 7,321.72 and 3,180.68 is: 4,389.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,305.04 : 7,321.72 = 3,180.68 : x
  2. Step 2: Convert to fraction form
    5,305.04/7,321.72 = 3,180.68/x
  3. Step 3: Cross multiply
    5,305.04x = 7,321.72 × 3,180.68
  4. Step 4: Simplify right side
    5,305.04x = 23,288,048.37
  5. Step 5: Solve for x
    x = 23,288,048.37/5,305.04
  6. Step 6: Final answer
    x = 4,389.80

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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.