Home / 3,491.24-4,819.77-2,166.08

Finding the Fourth Proportional to 3,491.24, 4,819.77 and 2,166.08

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Solution

The fourth proportional to 3,491.24, 4,819.77 and 2,166.08 is: 2,990.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,491.24 : 4,819.77 = 2,166.08 : x
  2. Step 2: Convert to fraction form
    3,491.24/4,819.77 = 2,166.08/x
  3. Step 3: Cross multiply
    3,491.24x = 4,819.77 × 2,166.08
  4. Step 4: Simplify right side
    3,491.24x = 10,439,983.30
  5. Step 5: Solve for x
    x = 10,439,983.30/3,491.24
  6. Step 6: Final answer
    x = 2,990.34

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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.