Home / 3,271.48-4,515.20-1,945.24

Finding the Fourth Proportional to 3,271.48, 4,515.20 and 1,945.24

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Solution

The fourth proportional to 3,271.48, 4,515.20 and 1,945.24 is: 2,684.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,271.48 : 4,515.20 = 1,945.24 : x
  2. Step 2: Convert to fraction form
    3,271.48/4,515.20 = 1,945.24/x
  3. Step 3: Cross multiply
    3,271.48x = 4,515.20 × 1,945.24
  4. Step 4: Simplify right side
    3,271.48x = 8,783,147.65
  5. Step 5: Solve for x
    x = 8,783,147.65/3,271.48
  6. Step 6: Final answer
    x = 2,684.76

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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.