Home / 3,700.20-5,106.36-2,107.20

Finding the Fourth Proportional to 3,700.20, 5,106.36 and 2,107.20

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Solution

The fourth proportional to 3,700.20, 5,106.36 and 2,107.20 is: 2,907.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,700.20 : 5,106.36 = 2,107.20 : x
  2. Step 2: Convert to fraction form
    3,700.20/5,106.36 = 2,107.20/x
  3. Step 3: Cross multiply
    3,700.20x = 5,106.36 × 2,107.20
  4. Step 4: Simplify right side
    3,700.20x = 10,760,121.79
  5. Step 5: Solve for x
    x = 10,760,121.79/3,700.20
  6. Step 6: Final answer
    x = 2,907.98

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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.