Home / 3,785.20-5,223.53-2,106.56

Finding the Fourth Proportional to 3,785.20, 5,223.53 and 2,106.56

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Solution

The fourth proportional to 3,785.20, 5,223.53 and 2,106.56 is: 2,907.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,785.20 : 5,223.53 = 2,106.56 : x
  2. Step 2: Convert to fraction form
    3,785.20/5,223.53 = 2,106.56/x
  3. Step 3: Cross multiply
    3,785.20x = 5,223.53 × 2,106.56
  4. Step 4: Simplify right side
    3,785.20x = 11,003,681.88
  5. Step 5: Solve for x
    x = 11,003,681.88/3,785.20
  6. Step 6: Final answer
    x = 2,907.03

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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.