Home / 3,840.12-5,761.68-3,106.58

Finding the Fourth Proportional to 3,840.12, 5,761.68 and 3,106.58

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Solution

The fourth proportional to 3,840.12, 5,761.68 and 3,106.58 is: 4,661.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840.12 : 5,761.68 = 3,106.58 : x
  2. Step 2: Convert to fraction form
    3,840.12/5,761.68 = 3,106.58/x
  3. Step 3: Cross multiply
    3,840.12x = 5,761.68 × 3,106.58
  4. Step 4: Simplify right side
    3,840.12x = 17,899,119.85
  5. Step 5: Solve for x
    x = 17,899,119.85/3,840.12
  6. Step 6: Final answer
    x = 4,661.08

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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.