Home / 4,216.32-5,819.40-2,891.75

Finding the Fourth Proportional to 4,216.32, 5,819.40 and 2,891.75

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Solution

The fourth proportional to 4,216.32, 5,819.40 and 2,891.75 is: 3,991.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,216.32 : 5,819.40 = 2,891.75 : x
  2. Step 2: Convert to fraction form
    4,216.32/5,819.40 = 2,891.75/x
  3. Step 3: Cross multiply
    4,216.32x = 5,819.40 × 2,891.75
  4. Step 4: Simplify right side
    4,216.32x = 16,828,220.85
  5. Step 5: Solve for x
    x = 16,828,220.85/4,216.32
  6. Step 6: Final answer
    x = 3,991.21

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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.