Home / 3,870.07-5,799.91-2,112.44

Finding the Fourth Proportional to 3,870.07, 5,799.91 and 2,112.44

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Solution

The fourth proportional to 3,870.07, 5,799.91 and 2,112.44 is: 3,165.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,870.07 : 5,799.91 = 2,112.44 : x
  2. Step 2: Convert to fraction form
    3,870.07/5,799.91 = 2,112.44/x
  3. Step 3: Cross multiply
    3,870.07x = 5,799.91 × 2,112.44
  4. Step 4: Simplify right side
    3,870.07x = 12,251,961.88
  5. Step 5: Solve for x
    x = 12,251,961.88/3,870.07
  6. Step 6: Final answer
    x = 3,165.82

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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.