Home / 4,128.80-6,195.41-1,937.55

Finding the Fourth Proportional to 4,128.80, 6,195.41 and 1,937.55

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Solution

The fourth proportional to 4,128.80, 6,195.41 and 1,937.55 is: 2,907.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.80 : 6,195.41 = 1,937.55 : x
  2. Step 2: Convert to fraction form
    4,128.80/6,195.41 = 1,937.55/x
  3. Step 3: Cross multiply
    4,128.80x = 6,195.41 × 1,937.55
  4. Step 4: Simplify right side
    4,128.80x = 12,003,897.16
  5. Step 5: Solve for x
    x = 12,003,897.16/4,128.80
  6. Step 6: Final answer
    x = 2,907.36

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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.