Home / 3,721.20-5,570.76-2,485.56

Finding the Fourth Proportional to 3,721.20, 5,570.76 and 2,485.56

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Solution

The fourth proportional to 3,721.20, 5,570.76 and 2,485.56 is: 3,720.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.20 : 5,570.76 = 2,485.56 : x
  2. Step 2: Convert to fraction form
    3,721.20/5,570.76 = 2,485.56/x
  3. Step 3: Cross multiply
    3,721.20x = 5,570.76 × 2,485.56
  4. Step 4: Simplify right side
    3,721.20x = 13,846,458.23
  5. Step 5: Solve for x
    x = 13,846,458.23/3,721.20
  6. Step 6: Final answer
    x = 3,720.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.