Home / 3,907.11-5,392.18-2,650.80

Finding the Fourth Proportional to 3,907.11, 5,392.18 and 2,650.80

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Solution

The fourth proportional to 3,907.11, 5,392.18 and 2,650.80 is: 3,658.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,907.11 : 5,392.18 = 2,650.80 : x
  2. Step 2: Convert to fraction form
    3,907.11/5,392.18 = 2,650.80/x
  3. Step 3: Cross multiply
    3,907.11x = 5,392.18 × 2,650.80
  4. Step 4: Simplify right side
    3,907.11x = 14,293,573.84
  5. Step 5: Solve for x
    x = 14,293,573.84/3,907.11
  6. Step 6: Final answer
    x = 3,658.35

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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.